- Faculty of Engineering
- Department of Electronic & Telecommunication Engineering
- Professor
Contact information
Address
Department of Electronic & Telecommunication Engineering
Faculty of Engineering
University of Moratuwa
Moratuwa
10400
Office
Extension
-
Primary Email
dileeka@uom.lk
Teaching and Administrative Activities
Teaching
Introduction to Telecommunications -Undergraduate -2015
Communications II -Undergraduate -2015
Mobile Computing -Undergraduate -2015
Internet of Things Design and Competition -Undergraduate -2017
Internet of Things -Undergraduate -2017
Introduction to Telecommunications -Undergraduate -2016
Internet of Things Design and Competition -Undergraduate -2018
Introduction to Telecommunications -Undergraduate -2018
Internet of Things -Undergraduate -2018
Introduction to Telecommunications -Undergraduate -2017
Administrative Activities
Dean - (2015 To date)
Head, Department of Electronic & Telecommunication Engineering - (1999 To 2004)
Dean. Faculty of Information Technology - (2007 To 2010)
Research Activities
Research Interests
Digital Signal Processing
Wireless Positioning
Location Based Systems
Wireless Sensor Networks
Mobile Computing
M2M Systems and Internet of Things
Intelligent Transportation Systems
Research Supervision
Performance Analysis of Wi-Fi Direct for Vehicular Ad-hoc Networks
Key Research Areas
Digital Signal Processing, Wireless Positioning, Location Based Systems, Wireless Sensor Networks, Mobile Computing, M2M Systems and Internet of Things, Intelligent Transportation Systems
Education and Professional Affiliations
Education
Bachelors, University of Moratuwa ,1984 B.Sc. Engineering, specializing in Electronic & Telecommunication Engineering
Masters, University of California ,1988 Electrical Engineering and Computer Science
PhD, University of California ,1992 Digital Mobile Communications
Professional Affiliations
Institute of Electrical and Electronic Engineers(1988 To date)
Association of Computing Machinery(2016 To date)
Corporate Member, Institution of Engineers(2004 To date)
Career
Professional Assignments
Establishing a quality of service (QoS) regulatory framework for fixed and mobil broadband services
Establishing a quality of service (QoS) regulatory framework for fixed and mobile voice services
Professional Activities
Senior Lecturer, Department of Electronic & Telecommunication Engineering, University of Moratuwa-June 1992 to April 2003
University of California Regent’s scholar, at the University of California, Davis.-August 1988 to June 1992
Presidential Scholar at the University of California, Davis, USA- August 1986 to July 1988
Honours and Awards
Honours and Awards
Presidential Scholarship for postgraduate studies awarded by the Presidential Fund, (Received 1986)
University of California Regents? Fellowship, (Received 1992)
Zonta Woman of Excellence award in Engineering (Received 2006)
National Science and Technology Award for ?Excellence in Multidisciplinary Research and Development?? (Received 2006)
National Best Quality Software Awards 2006-Gold Award for R &D and Overall Gold Award (Received )
GSM Asia Mobile Innovation Awards 2006 ? Finalist (Received 2006)
GSM Global Mobile Awards 2007 ? Commendation for ?Best Use of Mobile for Social and Economic Development? (Received 2007)
National Science and Technology Award for ? Engineering Product Development with Commercial Potential? (Received 2008)
National Science and Technology Award for ? Science and Technology for Sustainable Social Development? (Received 2010)
University of Moratuwa award for research excellence ? 2008,2009,2010 (Received )
Publications*
Books/Book Chapters Published
,".Power Electronics Design Handbook: Low power components and applications.",Butterworth-Newnes,2008
,".Digital and Analogue Instrumentation: Testing and Measurement.",IEEE,2008
,".Modern component families and circuit block design.",Butterworth-Heinemann,2008
Nihal Kularatna,".Essentials of modern telecommunications systems.",Artech House,2008
Conference Proceedings
Udara Mendis, Senura Maduwantha, Kasun Perera, Dinely Wellehewage,".360-Degree Immersive Experience for Indoor Cycling.",International Conference on Virtual and Augmented Reality Simulations (ICVARS 2022),Brisbane, Australia,2022,
Tilan Wickramarachchi1, Dileeka. Dias, Tharaka Samarasinghe and Nayan Dharmaraj,".Evaluation of DSRC/Wi-Fi Hybrid Communications for Intelligent Transport Systems.",IEEE Intelligent Transport Systems Conference (ITSC 2022),Macau, China,2022,
Shashini de Silva,".A Sensor Platform for the Visually Impaired to Walk Straight Avoiding Obstacles.",9th International Conference on Sensing Technology,Wellington, New Zealand,2015,838 - 843
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Subasinghe-Dias, D. and K. Feher: "Baseband Pulse Shaping Techniques for /4-DQPSK in Nonlinearly Amplified Land Mobile Channels", Proceedings of the IEEE Vehicular Technology, Conference, St. Louise, Missouri, May 1991.
Subsinghe-Dias, D. and K. Feher: "Coded 16-QAM With Channel State Derived Decoding for Fast Fading Land Mobile Channel", Proceedings of the IEEE International Conference on Communications, Denver, Colorado, June 1991.
Subasinghe-Dias, D. and K. Feher: "/4-CTPSK: A New Modem Technique for Mobile Satellite Radio Systems", IEICE Transactions of Japan, August 1991.
Subasinghe-Dias, D. and K. Feher: "A Coded 16-QAM With Space Diversity for Cellular Systems", Proceedings of the IEEE International Conference on Communications, Atlanta,Georgia, May 1992.
Subasinghe-Dias, D. and K. Feher: "Baseband Pulse Shaping for /4-FQPSK in Nonlinearly Amplified Mobile Channels", IEEE Transactions on Communications, October 1994.
Subasinghe-Dias, D. and K. Feher: "A 16-QAM Scheme for Fast Fading Mobile Radio Channels", IEEE Transactions on Communications, March 1995.
D. Dias, G. Dias and U. Perera: "Extending the reach of the Internet through paging", Proceedings of INET '95, Honolulu, Hawaii, May 1995.
D. Dias and G. Dias, "Placing Sri Lanka on the IT map: A Case Study", Transactions of the Institution of Engineers, Sri Lanka, 1996.
D. Dias, G.T.D. Methsiri Kumara, C. N. H. Liyanage, W. S.P. Welikada, “Self Aligning Antenna” ,Proceedings of the Engineering Research Unit (ERU) Seminar on Industry Related Reseasrch, University of Moratuwa, November 1997.
D. Dias, R. N. Gajaweera, “A Microcontroller Based Digital Signal Processing Trainer for Laboratory Use”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 1998.
D. Dias, N. Kularatna, "Recent Advances in Telecommunication Services and Infrastructure in Sri Lanka", Globalisation and South Asia, Retrospect and Prospect, Sri Lanka Association for the Advancement of Science, 1999.
Ziauddin M Kamran, A Rahim Leyman, M F M Firdhous, Dileeka Dias, "Blind Source Separation for Wireless Communications", Proceedings of the International Information Technology Conference, October 1999 (IITC '99).
D. Dias, R. N. Gajaweera "Self-Aligning Antenna Rotator", Transactions of the Institution of Engineers, Sri Lanka (IESL), October 1999.
D. Dias, R. N. Gajaweera, "DSP-based Speech Training of Hearing Impaired Children", Proceedings of the Engineering Research Unit (ERU) Seminar on Industry-Related Research, December 1999.
D. Dias, "Modern Developments in Telecommunications", Proceedings of the National Engineering Conference on Engineering for the emerging millenium, Institution of Engineers, Sri Lanka, October 2000.
D. Dias, N. Kularatna et. al., "Harmonic Control of a PWM Sine-wave Inverter Using Frequency Domain DSP Concepts", Proceedings of the High Frequency Power Control (HFPC) 2001 conference, Chicago, USA, September 2001.
D. G. Weerasinghe, D. Dias, "DSP-based Techniques for Speech Training of Hearing Impaired Children", Proceedings of the IEEE Pacific Rim Conference on Computers, Communications and Signal Processing, Victoria, Canada, August 2001.
K. Gamage, A. Ranaweera, J. P. Karunadasa, D. Dias, “Remote Meter Reading Over Power Distribution Lines”, Proceedings of the Engineering Research Unit (ERU) Symposium on Industry Related Research, University of Moratuwa, August 2002.
Y. M. S. S. Yapa, R. Wijesiriwardena, U. S. Wickramasinghe, M. T. L. Wickramarachchi, D. Dias, “Internet Telephony System”, Transactions of the IEE Sri Lanka, Vol. 4, No. 2, September 2002.
P. Ariyarathne, G. Dias, D. Dias, “Implementation of a full-featured VoIP System”, Transactions of the IEE Sri Lanka, Vol. 5, No. 1, September 2003.
N.S. Ahamed, W.K.V. De Mel, N.S. Gajaweera, S. A. D. Dias, “General Purpose Communication System for Data Transfer over GPRS”, Annual Conference of the IEE Sri Lanka Centre, September 2004.
B.M. D. Rangama, M. M. Siriwardena, S. P. K. A. Gunawardena, D. Dias, T. A. Peiris, “An Automated Rainfall Monitoring System”, Annual Conference of the IEE Sri Lanka Centre, September 2004.
G. K. Kulatillake, D. Dias, “Development of Standards for Local Language Support for Text Messaging within the GSM Specification”, International Information Technology Conference, 2005, (IITC 2005), September 2005.
Gamini Jayasinghe, Farazy Fahmy, Nuwan Gajaweera, Dileeka Dias, “ A GSM Alarm Device for Disaster Early Warning”, First International Conference on Industrial and Information Systems, (ICIIS 2006), Peradeniya, Sri Lanka, August 2006.
Nimalika Fernando, Dileeka Dias “A System Based on Web-GIS for Post Disaster Recovery Management”, International Information Technology Conference, 2006 [IITC 2006], September 2006.
Nimalika Fernando, Sirimevan Widyasekera, Lalith Gamage, Dileeka Dias “Study on feasibility of practical use of low cost GIS tools in the context of Sri Lanka for preparation and distribution of digital spatial data” Annual Conference of the Computer Society of Sri Lanka, 2007.
Udaya Dampage, Dileeka Dias “An Economical Approach for User Behaviour Determination for the Selection of Type of Location Based Services”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXX, No. 4 pp. 143-153, 2007.
B. D. S. Lakmali, Dias D., An Improved Positioning Technique Based on Database Correlation”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Pushpika Wijesinghe, Dias, D. Mobile Positioning with the Aid of Network Planning Tool”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Chitraranjan H. M. C. D., De Silva D. V. S. X., Hemachandra P. A. V. V., Bandara H. R. D. N., Dias S. A. D., “ Development of a Low Cost Signalling System Number 7 (SS7) Protocol Analyzer”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Nuwan Waidyanatha, Dileeka Dias, Harsha Purasinghe, “Challenges of Optimizing Common Alerting Protocol for SMS-based GSM Devices in Last-Mile Hazard Warnings in Sri Lanka”, Wireless World Research Forum Meeting 19, Chennai, India, November 2007.
B. D. S. Lakmali, W. H .M. P. Wijesinghe, K. U. M. de Slva, K. G. Liyanagama, S. A. D. Dias, “ Design, Implementation and Testing of Positioning Techniques in Mobile Networks”, 3rd International Conference on Information and Automation for Sustainability, ICIAfS 2007, Melbourne, Australia, December 2007.
Champika Janashanthi, Dileeka Dias, “Indoor RF Coverage Prediction for Wireless Local Area Networks”, Annual Conference of the IET, Sri Lanka Centre, October 2008.
R. V. Abeywickrama, A. A. T. I. Attanayake, R.H.De Silva Ginige, D.D.A.P.C Domingo, D. Dias, “Car Park Navigating System”, Engineering Research Unit (ERU) Symposium, 2008, University of Moratuwa, October, 2008
C. M. S. U. Bandara, W. D. A. Indrajith, S. A. M. Nirosha, W. N. E. Peiris, S. A. D. Dias, “Video Surveillance System with Adaptive Compensation for Wireless Networks”, Engineering Research Unit (ERU) Symposium, 2008, University of Moratuwa, October, 2008.
M. Medagama, D.S. Gamage, W.P.L. Wijesinghe, N. Leelaratna, G. T. I. Karunaratne, Dileeka Dias “A GIP/GPS/GPRS and Web-based Framework for Fleet Tracking”, National Conference on Geoinformatics Applications in Sri Lanka, 2008, Arthur C. Clarke Institute for Modern Technologies and Centre for Geoinformatics Applications and Training, October 2008.
M. Medagama, D.S. Gamage, W.P.L. Wijesinghe, N. Leelaratna, G. T. I. Karunaratne, Dileeka Dias “A GIP/GPS/GPRS and Web-based Framework for Fleet Tracking”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXXI, No. 5 pp. 28-33, 2008.
Lanka Wijesinghe, Prasanga Siriwardena, Sinnathamby Shanmugarajah, Sameera Wijeratne, Randinee Wijesinghe, Michael de Soyza, Harsh Purasinghe, Dileeka Dias “DEWN II: A Trilingual Disaster and Emergency Warning Network”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
B. M. D. Prasad Bandara, J. T. Charith Gunasekera, K. U. Kelum Weliwatta, W. A. I. Maduranga Wickramasinghe, Ajith Pasqual, Dileeka Dias, “ Cellular Intercom”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
K. V. R. Silva, N. D. Suraweera, D. S. Talagala, D. K. Thilakarathna, Dileeka Dias, “Zigbee-based Local Communication System for a High Noise Environment”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
Pushpika Wijesinghe, Dileeka Dias, “A Novel Approach for RSS Calibration in DCM -based Mobile Positioning using Propagation Models”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
B. D. S. Lakmali, Dileeka Dias, “Database Correlation for GSM Location in Outdoor & Indoor Environments”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
Nuwan Gajaweera, Dileeka Dias, “FAMA/TDMA Hybrid MAC for Wireless Sensor Networks”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
D.N. Jayasingha, N.P.M.L. Jayawardhane, P.N. Karunanayake, G.D. Karunarathne, D. Dias “Wireless Sensor Network Testbed for Mobile Data Communication”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
Jinendra Dharamapala, Dileeka Dias, “A Methodology for Speech Quality Assessment in Wireless Networks”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXXII, No. 4 pp. 105-111, 2009.
K. C. Amarasinghe, L. I. D. Kariyawasan, C. S. Rupasinghe, W. A. T. Ruwansiri, S. A. D. Dias, “Mobile Healthcare Network and Distance Consulting on 3G”, Proceedings of the 15th Annual ERU Symposium, University of Moratuwa, November, 2009.
N. S. Ferdinand, K. Thivya, E. A. Udagedara, P. E. Weerathunga, N. W. N. Dayananda, S. A. D. Dias, “Brain E-Learner”, Proceedings of the 15th Annual ERU Symposium, University of Moratuwa, November, 2009.
M. K. S. Anupama, K. G. Galagedara, D. H. G. Hettiarachchi, L. H. A. N. D. Kumari, S. V. K. Samaraweera, Dileeka Dias, A. S. Karunananda, “A variant for chess using an on-line multiplayer approach”, Proceedings of the ITRU Research Symposium, University of Moratuwa, pp. 34 – 38, November 2009.
W.A.Suresha Nilmini Perera, Panduka Karunanayake and Dileeka Dias, “UCFM Travel Health Clinic: Concept and Design”, Proceedings of the 27th National IT Conference, Colombo, Sri Lanka, November 2009 (ISBN: 978-955-9155-17-1) pp. 260 – 264.
S Ahangama, T.M.T.N Fernando and D Dias, “GPS /GIS enabled decision support system for real time taxi guiding in local Context”, Proceedings of the 27th National IT Conference, Colombo, Sri Lanka, November 2009 (ISBN: 978-955-9155-17-1) pp. 233 – 239.
Kelum Vithana, Shantha Fernando, Dileeka Dias "A Service Platform for Subscription-Based Live Video Streaming", 4 th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009
Michael Medagama, Dileeka Dias, Shantha Fernando , "Transcoding Based Optimum Quality Video Streaming Under Limited Bandwidth", 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009
R. H. A. N. C. Bandara, Dileeka Dias, “A Multi-Agent System for Dynamic Ride Sharing”, 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009.
Dasuni Kannangara, Nimalika Fernando, Dileeka Dias, “A Web-based Methodology for Visualizing Time-Varying Spatial Information”, 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009.
Nimalika Fernando, Dileeka Dias, “Challenges and Opportunities related to serving GIS via Mobile Phones: Review from a Developing Nation’s Perspective”, Free and Open Source Software for GIS (FOSS4G) conference, Sydney, Australia, October 2009.
N. S. Kodippili, Dileeka Dias, “Integration of Fingerprinting and Trilateration Techniques for Improved Indoor Localization”, Proceedings of the 7th International Conference on Wireless and Optical Communicatgions Networks (WOCN-2010), Colombo, Sri Lanka, September, 2010.
Nimalika Fernando, Dileeka Dias, Sohan Wijesekara, “Mobile Internet based approach to provide geoenabled services on low to mid-range mobile phones”, ICTer 2010, Colombo, Sri Lanka, October 2010.
Deneth Karunathne, Thanushka Gunasekera, Dharshana Kasthurirathne, Dileeka Dias, “Mobile-based GIS for Dynamic Team Tracking and Map Generation”, Proceedings of the 5th International Conference on Information and Automation for Sustainability (ICIAfS-2010), Colombo, Sri Lanka, December 2010.
Nimalika Fernando, Sohan Wijesekara, Dileeka Dias, “A Framework to Develop Location Based Services Applications Using OGC Map Services”, Proceedings of the 5th International Conference on Information and Automation for Sustainability (ICIAfS-2010), Colombo, Sri Lanka, December 2010.
T. C. Sandanayake, A. P. Madurapperuma, D. Dias, “Affective E Learning Model for Recognising Learner Emotions”, International Journal of Information and Education Technology, Vol. 1, No. 4, October 2011, pp. 315-320. ISSN: 2010-3689.
Lanka Wijesinghe, Prasanga Siriwardena, Shamali Dahanayake, Dharshana Kasthuriratne, Ravi Corea, Dileeka Dias, “Electric Fence Intrusion Alert System (eleAlert), Proceedings of the IEEE Global Humanitarian Conference, Seattle, Washington, USA, Oct-Nov. 2011.
Lanka Wijesinghe, Prasanga Siriwardena, Sameera Wijerathna, Harsha Purasinghe, Dileeka Dias, “Disaster and Emergency Warning Network (DEWN): Harnessing Cellular Technology for Early Warning Dissemination”, Proceedings of the IEEE Global Humanitarian Conference, Seattle, Washington, USA, Oct-Nov. 2011.
Rakhitha Chandrasekara, Lanka Wijesinghe, Prasanga Siriwardena, J. Prasad Kumara Sampath, Ruvini Edirisinghe , Dileeka Dias, “Sensing Line-of-Sight Obstructions in a Multipath Radio Environment”, Annual Symposium of the Engineering Research Unit, University of Moratuwa, December, 2011.
Perera, K., Dias, D. An intelligent driver guidance tool using location based services, IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services (ICSDM), June-July 2011, pp. 246-251
Lanka Wijesinghe, Prasanga Siriwardena, Dileeka Dias, “A Wireless Sensor Network for Early Warning of Elephant Intrusions”, 1st International Conference on Wirless Sensor Networks for Developing Countries (WSN4DC 2013), Jamshoro, Pakistan, April, 2013. Also published in Wireless Sensor Networks for Developing Countries, 2013, FK Shaikh et al. (Eds.), CCIS 366, pp. 38–50, Springer-Verlag Berlin, 2013.
Yogatheesan Varatharajah, Nuwan Karunathilaka, Mohamed Rismi, Sujan Kotinkaduwa, Dileeka Dias, “Body Area Sensor Network for Evaluating Fitness Exercise”, Proceedings of the IFIP/IEEE Wireless and Mobile Networking Conference(WMNC2013), Dubai, April 2013.
Ruwini Edirisinghe, Dileeka Dias, Rakhitha Chandrasekara, Lanka Wijesinghe, Prasanga Siriwardena, Prasad Kumara Sampath, “Wi-Alert : A Wireless Sensor Network Based Intrusion Alert Prototype for HEC”, International Journal of Distributed and Parallel Systems (IJDPS), ISSN/EISSN: 22293957 09769757, Vol 4, Issue 4, pp. 75-88, 2013.
E.R.I. A. C. Manel, A. S. Perera, S. A. D. Dias, “Generating Lane Level Road Data from Vehicle Trajectories Using Kernel Density Estimation”, 16th IEEE Intelligent Transportation Systems Conference (IEEE-ITSC), the Hague, the Netherlands, October 2013.
C.L. Kariyawasam, Dileeka Dias, “GIS Based Analysis for Telecommunication Access Network Planning and Decision making”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 2013.
D. S. Senanayake, D. Dias, “A Novel Approach for Propagation Model Tuning by Integrating Multipath Effect and Using Building Database”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 2013.
Udari Dakshitha, Dakshitha Lenagala, Lakshani Silva, Hasitha Siriwardena, Dileeka Dias, “Vehicular Traffic Monitoring with Mobile Devices”, 8th International Conference on Industrial and Information Systems, Peradeniya, Sri Lanka, December 2013, pp. 676 – 681.
Samiru Gayan, Dileeka Dias, “Improved DV-Hop algorithm through anchor position re-estimation”, Proceedings of the 2014 IEEE Asia Pacific Conference on Wireless and Mobile, Bali, Indonesia, August 2014, pp. 126 – 131.
Prasad Sampath, Ruwini Edirisinghe, Dileeka Dias, “Sensor Network Based Device Free Intrusion Detection and Localisation”, Proceedings of the 7th International Conference on Information and Automation for Sustainability, Colombo, December 2014.
A Hettiarachchi, A Premalal, D Dias, S Nanayakkara, "Toward Context-Aware Just-in-Time Information: Micro-Activity Recognition of Everyday Objects", OzCHI '14 Proceedings of the 26th Australian Computer-Human Interaction Conference on Designing Futures: the Future of Design, December 2014.
H. H.Samiru Gayan, Dileeka Dias, “Novel Enhancements for Node Localization in Wireless Sensor Networks”, Proceedings of the 7th International Conference on Information and Automation for Sustainability, Colombo, December 2014.
R Edirisinghe, H Lingard, N Blismas, D Dias, R Wakefield, "Device-free detection to improve construction work health and safety", Computing in Civil and Building Engineering (2014), 1078-1085.
Shashini de Silva, Dileeka Dias, "A Sensor Platform for the Visually Impaired to Walk Straight Avoiding Obstacles", Proceedings of the 9th International Conference on Sensing Technology, Wellington, New Zealand, December 2015, pp. 838 - 843.
U Sajeev, R Muralitharan, MMM Ramsan, MNM Zamrath, D Dias, Open Source Mobile Network", Moratuwa Engineering Research Conference (MERCon), 2016, 102-107
D Samudika, L Jayasinghe, KE Gunathilaka, Y Rumesh, R Weerasuriya, D. Dias, "Stereo audio streaming via Visible Light", Moratuwa Engineering Research Conference (MERCon), 2016, 132-136
Balasundram Arunn, Tharaka Samarasinghe, Dileeka Dias, "Performance Analysis of Wi-Fi Direct for Vehicular Ad-hoc Networks", 10th IEEE International Conference on Advanced Networks and Telecommuncations Systems (ANTS), Bangalore, India, November, 2016.
Samodha Pallewatta, Poorni S. Lakmali, Sandini Wijewardana, Pabasara Ranathunga,
Tharaka Samarasinghe, Dileeka Dias, "802.11p: Insights from the MAC and Physical Layers for a Cooperate Car Following Application", Intelligent Transport Systems – From research and development to the market uptake (INTSYS 2017), Helsinki, Finland, November 2017.
W. Manamperi, D. Karunathilake, T. Madhushani, N. Galagedara and D. Dias, "Sinhala Speech Recognition for Interactive Voice Response Systems Accessed Through Mobile Phones," 2018 Moratuwa Engineering Research Conference (MERCon), Moratuwa, 2018, pp. 241-246.doi: 10.1109/MERCon.2018.8421888
Ongoing Research
Hybrid Wireless Positioning
V2X Communications for Intelligent Transportation Systems
Internet of Things Hardware and Protocol Architectures
Low Power Wireless Communications
BooksBooks:
Essentials of Modern Telecommunications Systems, Nihal Kularatna and Dileeka Dias, Artech House, Boston, London, May 2004
Chapter 10 – Recent Advances in Telecommunication Services and Infrastructure in Sri Lanka, “Globalisation and South Asia – Retrospect and Prospect”, Edited by A.D. V. de S. Indraratna, Sri Lanka Association for the Advancement of Science, 1999.
Chapter 1 - Voltage References and Voltage Regulators; “Modern Component Families and Circuit Block Design”, by Nihal Kularatna; Butterworth-Heinemann, USA April 2000.
Chapter 10 – Logic Analysers; “Analog and Digital Instrumentation”, by Nihal Kularatna, IEE Press, London, January 2003.
Web archived publications
Publications
Journal / Conference Papers:
Subasinghe-Dias, D. and K. Feher, “Miller Coded Pilot Aided Modulation Schemes for Digital Mobile Radio”, Proceedings of the IEEE Vehicular Technology Conference, Orlando, Florida, May 1990.Subasinghe-Dias, D. and K. Feher: "Baseband Pulse Shaping Techniques for /4-DQPSK in Nonlinearly Amplified Land Mobile Channels", Proceedings of the IEEE Vehicular Technology, Conference, St. Louise, Missouri, May 1991.
Subsinghe-Dias, D. and K. Feher: "Coded 16-QAM With Channel State Derived Decoding for Fast Fading Land Mobile Channel", Proceedings of the IEEE International Conference on Communications, Denver, Colorado, June 1991.
Subasinghe-Dias, D. and K. Feher: "/4-CTPSK: A New Modem Technique for Mobile Satellite Radio Systems", IEICE Transactions of Japan, August 1991.
Subasinghe-Dias, D. and K. Feher: "A Coded 16-QAM With Space Diversity for Cellular Systems", Proceedings of the IEEE International Conference on Communications, Atlanta,Georgia, May 1992.
Subasinghe-Dias, D. and K. Feher: "Baseband Pulse Shaping for /4-FQPSK in Nonlinearly Amplified Mobile Channels", IEEE Transactions on Communications, October 1994.
Subasinghe-Dias, D. and K. Feher: "A 16-QAM Scheme for Fast Fading Mobile Radio Channels", IEEE Transactions on Communications, March 1995.
D. Dias, G. Dias and U. Perera: "Extending the reach of the Internet through paging", Proceedings of INET '95, Honolulu, Hawaii, May 1995.
D. Dias and G. Dias, "Placing Sri Lanka on the IT map: A Case Study", Transactions of the Institution of Engineers, Sri Lanka, 1996.
D. Dias, G.T.D. Methsiri Kumara, C. N. H. Liyanage, W. S.P. Welikada, “Self Aligning Antenna” ,Proceedings of the Engineering Research Unit (ERU) Seminar on Industry Related Reseasrch, University of Moratuwa, November 1997.
D. Dias, R. N. Gajaweera, “A Microcontroller Based Digital Signal Processing Trainer for Laboratory Use”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 1998.
D. Dias, N. Kularatna, "Recent Advances in Telecommunication Services and Infrastructure in Sri Lanka", Globalisation and South Asia, Retrospect and Prospect, Sri Lanka Association for the Advancement of Science, 1999.
Ziauddin M Kamran, A Rahim Leyman, M F M Firdhous, Dileeka Dias, "Blind Source Separation for Wireless Communications", Proceedings of the International Information Technology Conference, October 1999 (IITC '99).
D. Dias, R. N. Gajaweera "Self-Aligning Antenna Rotator", Transactions of the Institution of Engineers, Sri Lanka (IESL), October 1999.
D. Dias, R. N. Gajaweera, "DSP-based Speech Training of Hearing Impaired Children", Proceedings of the Engineering Research Unit (ERU) Seminar on Industry-Related Research, December 1999.
D. Dias, "Modern Developments in Telecommunications", Proceedings of the National Engineering Conference on Engineering for the emerging millenium, Institution of Engineers, Sri Lanka, October 2000.
D. Dias, N. Kularatna et. al., "Harmonic Control of a PWM Sine-wave Inverter Using Frequency Domain DSP Concepts", Proceedings of the High Frequency Power Control (HFPC) 2001 conference, Chicago, USA, September 2001.
D. G. Weerasinghe, D. Dias, "DSP-based Techniques for Speech Training of Hearing Impaired Children", Proceedings of the IEEE Pacific Rim Conference on Computers, Communications and Signal Processing, Victoria, Canada, August 2001.
K. Gamage, A. Ranaweera, J. P. Karunadasa, D. Dias, “Remote Meter Reading Over Power Distribution Lines”, Proceedings of the Engineering Research Unit (ERU) Symposium on Industry Related Research, University of Moratuwa, August 2002.
Y. M. S. S. Yapa, R. Wijesiriwardena, U. S. Wickramasinghe, M. T. L. Wickramarachchi, D. Dias, “Internet Telephony System”, Transactions of the IEE Sri Lanka, Vol. 4, No. 2, September 2002.
P. Ariyarathne, G. Dias, D. Dias, “Implementation of a full-featured VoIP System”, Transactions of the IEE Sri Lanka, Vol. 5, No. 1, September 2003.
N.S. Ahamed, W.K.V. De Mel, N.S. Gajaweera, S. A. D. Dias, “General Purpose Communication System for Data Transfer over GPRS”, Annual Conference of the IEE Sri Lanka Centre, September 2004.
B.M. D. Rangama, M. M. Siriwardena, S. P. K. A. Gunawardena, D. Dias, T. A. Peiris, “An Automated Rainfall Monitoring System”, Annual Conference of the IEE Sri Lanka Centre, September 2004.
G. K. Kulatillake, D. Dias, “Development of Standards for Local Language Support for Text Messaging within the GSM Specification”, International Information Technology Conference, 2005, (IITC 2005), September 2005.
Gamini Jayasinghe, Farazy Fahmy, Nuwan Gajaweera, Dileeka Dias, “ A GSM Alarm Device for Disaster Early Warning”, First International Conference on Industrial and Information Systems, (ICIIS 2006), Peradeniya, Sri Lanka, August 2006.
Nimalika Fernando, Dileeka Dias “A System Based on Web-GIS for Post Disaster Recovery Management”, International Information Technology Conference, 2006 [IITC 2006], September 2006.
Nimalika Fernando, Sirimevan Widyasekera, Lalith Gamage, Dileeka Dias “Study on feasibility of practical use of low cost GIS tools in the context of Sri Lanka for preparation and distribution of digital spatial data” Annual Conference of the Computer Society of Sri Lanka, 2007.
Udaya Dampage, Dileeka Dias “An Economical Approach for User Behaviour Determination for the Selection of Type of Location Based Services”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXX, No. 4 pp. 143-153, 2007.
B. D. S. Lakmali, Dias D., An Improved Positioning Technique Based on Database Correlation”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Pushpika Wijesinghe, Dias, D. Mobile Positioning with the Aid of Network Planning Tool”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Chitraranjan H. M. C. D., De Silva D. V. S. X., Hemachandra P. A. V. V., Bandara H. R. D. N., Dias S. A. D., “ Development of a Low Cost Signalling System Number 7 (SS7) Protocol Analyzer”, Annual Conference of the IET, Sri Lanka Centre, October 2007.
Nuwan Waidyanatha, Dileeka Dias, Harsha Purasinghe, “Challenges of Optimizing Common Alerting Protocol for SMS-based GSM Devices in Last-Mile Hazard Warnings in Sri Lanka”, Wireless World Research Forum Meeting 19, Chennai, India, November 2007.
B. D. S. Lakmali, W. H .M. P. Wijesinghe, K. U. M. de Slva, K. G. Liyanagama, S. A. D. Dias, “ Design, Implementation and Testing of Positioning Techniques in Mobile Networks”, 3rd International Conference on Information and Automation for Sustainability, ICIAfS 2007, Melbourne, Australia, December 2007.
Champika Janashanthi, Dileeka Dias, “Indoor RF Coverage Prediction for Wireless Local Area Networks”, Annual Conference of the IET, Sri Lanka Centre, October 2008.
R. V. Abeywickrama, A. A. T. I. Attanayake, R.H.De Silva Ginige, D.D.A.P.C Domingo, D. Dias, “Car Park Navigating System”, Engineering Research Unit (ERU) Symposium, 2008, University of Moratuwa, October, 2008
C. M. S. U. Bandara, W. D. A. Indrajith, S. A. M. Nirosha, W. N. E. Peiris, S. A. D. Dias, “Video Surveillance System with Adaptive Compensation for Wireless Networks”, Engineering Research Unit (ERU) Symposium, 2008, University of Moratuwa, October, 2008.
M. Medagama, D.S. Gamage, W.P.L. Wijesinghe, N. Leelaratna, G. T. I. Karunaratne, Dileeka Dias “A GIP/GPS/GPRS and Web-based Framework for Fleet Tracking”, National Conference on Geoinformatics Applications in Sri Lanka, 2008, Arthur C. Clarke Institute for Modern Technologies and Centre for Geoinformatics Applications and Training, October 2008.
M. Medagama, D.S. Gamage, W.P.L. Wijesinghe, N. Leelaratna, G. T. I. Karunaratne, Dileeka Dias “A GIP/GPS/GPRS and Web-based Framework for Fleet Tracking”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXXI, No. 5 pp. 28-33, 2008.
Lanka Wijesinghe, Prasanga Siriwardena, Sinnathamby Shanmugarajah, Sameera Wijeratne, Randinee Wijesinghe, Michael de Soyza, Harsh Purasinghe, Dileeka Dias “DEWN II: A Trilingual Disaster and Emergency Warning Network”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
B. M. D. Prasad Bandara, J. T. Charith Gunasekera, K. U. Kelum Weliwatta, W. A. I. Maduranga Wickramasinghe, Ajith Pasqual, Dileeka Dias, “ Cellular Intercom”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
K. V. R. Silva, N. D. Suraweera, D. S. Talagala, D. K. Thilakarathna, Dileeka Dias, “Zigbee-based Local Communication System for a High Noise Environment”, International Conference on Information Technology (IITC 2008), Colombo, Sri Lanka, October 2008.
Pushpika Wijesinghe, Dileeka Dias, “A Novel Approach for RSS Calibration in DCM -based Mobile Positioning using Propagation Models”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
B. D. S. Lakmali, Dileeka Dias, “Database Correlation for GSM Location in Outdoor & Indoor Environments”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
Nuwan Gajaweera, Dileeka Dias, “FAMA/TDMA Hybrid MAC for Wireless Sensor Networks”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
D.N. Jayasingha, N.P.M.L. Jayawardhane, P.N. Karunanayake, G.D. Karunarathne, D. Dias “Wireless Sensor Network Testbed for Mobile Data Communication”, 4th International Conference on Information and Automation for Sustainability (ICIAfS 08), Colombo, Sri Lanka, December 2008.
Jinendra Dharamapala, Dileeka Dias, “A Methodology for Speech Quality Assessment in Wireless Networks”, Engineer, Journal of the Institution of Engineers, Sri Lanka, Vol. XXXXII, No. 4 pp. 105-111, 2009.
K. C. Amarasinghe, L. I. D. Kariyawasan, C. S. Rupasinghe, W. A. T. Ruwansiri, S. A. D. Dias, “Mobile Healthcare Network and Distance Consulting on 3G”, Proceedings of the 15th Annual ERU Symposium, University of Moratuwa, November, 2009.
N. S. Ferdinand, K. Thivya, E. A. Udagedara, P. E. Weerathunga, N. W. N. Dayananda, S. A. D. Dias, “Brain E-Learner”, Proceedings of the 15th Annual ERU Symposium, University of Moratuwa, November, 2009.
M. K. S. Anupama, K. G. Galagedara, D. H. G. Hettiarachchi, L. H. A. N. D. Kumari, S. V. K. Samaraweera, Dileeka Dias, A. S. Karunananda, “A variant for chess using an on-line multiplayer approach”, Proceedings of the ITRU Research Symposium, University of Moratuwa, pp. 34 – 38, November 2009.
W.A.Suresha Nilmini Perera, Panduka Karunanayake and Dileeka Dias, “UCFM Travel Health Clinic: Concept and Design”, Proceedings of the 27th National IT Conference, Colombo, Sri Lanka, November 2009 (ISBN: 978-955-9155-17-1) pp. 260 – 264.
S Ahangama, T.M.T.N Fernando and D Dias, “GPS /GIS enabled decision support system for real time taxi guiding in local Context”, Proceedings of the 27th National IT Conference, Colombo, Sri Lanka, November 2009 (ISBN: 978-955-9155-17-1) pp. 233 – 239.
Kelum Vithana, Shantha Fernando, Dileeka Dias "A Service Platform for Subscription-Based Live Video Streaming", 4 th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009
Michael Medagama, Dileeka Dias, Shantha Fernando , "Transcoding Based Optimum Quality Video Streaming Under Limited Bandwidth", 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009
R. H. A. N. C. Bandara, Dileeka Dias, “A Multi-Agent System for Dynamic Ride Sharing”, 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009.
Dasuni Kannangara, Nimalika Fernando, Dileeka Dias, “A Web-based Methodology for Visualizing Time-Varying Spatial Information”, 4th International Conference on Industrial and Information Systems , Peradeniya, Sri Lanka, December 2009.
Nimalika Fernando, Dileeka Dias, “Challenges and Opportunities related to serving GIS via Mobile Phones: Review from a Developing Nation’s Perspective”, Free and Open Source Software for GIS (FOSS4G) conference, Sydney, Australia, October 2009.
N. S. Kodippili, Dileeka Dias, “Integration of Fingerprinting and Trilateration Techniques for Improved Indoor Localization”, Proceedings of the 7th International Conference on Wireless and Optical Communicatgions Networks (WOCN-2010), Colombo, Sri Lanka, September, 2010.
Nimalika Fernando, Dileeka Dias, Sohan Wijesekara, “Mobile Internet based approach to provide geoenabled services on low to mid-range mobile phones”, ICTer 2010, Colombo, Sri Lanka, October 2010.
Deneth Karunathne, Thanushka Gunasekera, Dharshana Kasthurirathne, Dileeka Dias, “Mobile-based GIS for Dynamic Team Tracking and Map Generation”, Proceedings of the 5th International Conference on Information and Automation for Sustainability (ICIAfS-2010), Colombo, Sri Lanka, December 2010.
Nimalika Fernando, Sohan Wijesekara, Dileeka Dias, “A Framework to Develop Location Based Services Applications Using OGC Map Services”, Proceedings of the 5th International Conference on Information and Automation for Sustainability (ICIAfS-2010), Colombo, Sri Lanka, December 2010.
T. C. Sandanayake, A. P. Madurapperuma, D. Dias, “Affective E Learning Model for Recognising Learner Emotions”, International Journal of Information and Education Technology, Vol. 1, No. 4, October 2011, pp. 315-320. ISSN: 2010-3689.
Lanka Wijesinghe, Prasanga Siriwardena, Shamali Dahanayake, Dharshana Kasthuriratne, Ravi Corea, Dileeka Dias, “Electric Fence Intrusion Alert System (eleAlert), Proceedings of the IEEE Global Humanitarian Conference, Seattle, Washington, USA, Oct-Nov. 2011.
Lanka Wijesinghe, Prasanga Siriwardena, Sameera Wijerathna, Harsha Purasinghe, Dileeka Dias, “Disaster and Emergency Warning Network (DEWN): Harnessing Cellular Technology for Early Warning Dissemination”, Proceedings of the IEEE Global Humanitarian Conference, Seattle, Washington, USA, Oct-Nov. 2011.
Rakhitha Chandrasekara, Lanka Wijesinghe, Prasanga Siriwardena, J. Prasad Kumara Sampath, Ruvini Edirisinghe , Dileeka Dias, “Sensing Line-of-Sight Obstructions in a Multipath Radio Environment”, Annual Symposium of the Engineering Research Unit, University of Moratuwa, December, 2011.
Perera, K., Dias, D. An intelligent driver guidance tool using location based services, IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services (ICSDM), June-July 2011, pp. 246-251
Lanka Wijesinghe, Prasanga Siriwardena, Dileeka Dias, “A Wireless Sensor Network for Early Warning of Elephant Intrusions”, 1st International Conference on Wirless Sensor Networks for Developing Countries (WSN4DC 2013), Jamshoro, Pakistan, April, 2013. Also published in Wireless Sensor Networks for Developing Countries, 2013, FK Shaikh et al. (Eds.), CCIS 366, pp. 38–50, Springer-Verlag Berlin, 2013.
Yogatheesan Varatharajah, Nuwan Karunathilaka, Mohamed Rismi, Sujan Kotinkaduwa, Dileeka Dias, “Body Area Sensor Network for Evaluating Fitness Exercise”, Proceedings of the IFIP/IEEE Wireless and Mobile Networking Conference(WMNC2013), Dubai, April 2013.
Ruwini Edirisinghe, Dileeka Dias, Rakhitha Chandrasekara, Lanka Wijesinghe, Prasanga Siriwardena, Prasad Kumara Sampath, “Wi-Alert : A Wireless Sensor Network Based Intrusion Alert Prototype for HEC”, International Journal of Distributed and Parallel Systems (IJDPS), ISSN/EISSN: 22293957 09769757, Vol 4, Issue 4, pp. 75-88, 2013.
E.R.I. A. C. Manel, A. S. Perera, S. A. D. Dias, “Generating Lane Level Road Data from Vehicle Trajectories Using Kernel Density Estimation”, 16th IEEE Intelligent Transportation Systems Conference (IEEE-ITSC), the Hague, the Netherlands, October 2013.
C.L. Kariyawasam, Dileeka Dias, “GIS Based Analysis for Telecommunication Access Network Planning and Decision making”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 2013.
D. S. Senanayake, D. Dias, “A Novel Approach for Propagation Model Tuning by Integrating Multipath Effect and Using Building Database”, Transactions of the Institution of Engineers, Sri Lanka (IESL), October 2013.
Udari Dakshitha, Dakshitha Lenagala, Lakshani Silva, Hasitha Siriwardena, Dileeka Dias, “Vehicular Traffic Monitoring with Mobile Devices”, 8th International Conference on Industrial and Information Systems, Peradeniya, Sri Lanka, December 2013, pp. 676 – 681.
Samiru Gayan, Dileeka Dias, “Improved DV-Hop algorithm through anchor position re-estimation”, Proceedings of the 2014 IEEE Asia Pacific Conference on Wireless and Mobile, Bali, Indonesia, August 2014, pp. 126 – 131.
Prasad Sampath, Ruwini Edirisinghe, Dileeka Dias, “Sensor Network Based Device Free Intrusion Detection and Localisation”, Proceedings of the 7th International Conference on Information and Automation for Sustainability, Colombo, December 2014.
A Hettiarachchi, A Premalal, D Dias, S Nanayakkara, "Toward Context-Aware Just-in-Time Information: Micro-Activity Recognition of Everyday Objects", OzCHI '14 Proceedings of the 26th Australian Computer-Human Interaction Conference on Designing Futures: the Future of Design, December 2014.
H. H.Samiru Gayan, Dileeka Dias, “Novel Enhancements for Node Localization in Wireless Sensor Networks”, Proceedings of the 7th International Conference on Information and Automation for Sustainability, Colombo, December 2014.
R Edirisinghe, H Lingard, N Blismas, D Dias, R Wakefield, "Device-free detection to improve construction work health and safety", Computing in Civil and Building Engineering (2014), 1078-1085.
Shashini de Silva, Dileeka Dias, "A Sensor Platform for the Visually Impaired to Walk Straight Avoiding Obstacles", Proceedings of the 9th International Conference on Sensing Technology, Wellington, New Zealand, December 2015, pp. 838 - 843.
U Sajeev, R Muralitharan, MMM Ramsan, MNM Zamrath, D Dias, Open Source Mobile Network", Moratuwa Engineering Research Conference (MERCon), 2016, 102-107
D Samudika, L Jayasinghe, KE Gunathilaka, Y Rumesh, R Weerasuriya, D. Dias, "Stereo audio streaming via Visible Light", Moratuwa Engineering Research Conference (MERCon), 2016, 132-136
Balasundram Arunn, Tharaka Samarasinghe, Dileeka Dias, "Performance Analysis of Wi-Fi Direct for Vehicular Ad-hoc Networks", 10th IEEE International Conference on Advanced Networks and Telecommuncations Systems (ANTS), Bangalore, India, November, 2016.
Samodha Pallewatta, Poorni S. Lakmali, Sandini Wijewardana, Pabasara Ranathunga,
Tharaka Samarasinghe, Dileeka Dias, "802.11p: Insights from the MAC and Physical Layers for a Cooperate Car Following Application", Intelligent Transport Systems – From research and development to the market uptake (INTSYS 2017), Helsinki, Finland, November 2017.
W. Manamperi, D. Karunathilake, T. Madhushani, N. Galagedara and D. Dias, "Sinhala Speech Recognition for Interactive Voice Response Systems Accessed Through Mobile Phones," 2018 Moratuwa Engineering Research Conference (MERCon), Moratuwa, 2018, pp. 241-246.doi: 10.1109/MERCon.2018.8421888
Ongoing Research
Hybrid Wireless Positioning
V2X Communications for Intelligent Transportation Systems
Internet of Things Hardware and Protocol Architectures
Low Power Wireless Communications
Books
Essentials of Modern Telecommunications Systems, Nihal Kularatna and Dileeka Dias, Artech House, Boston, London, May 2004
Contribution to Books:
Chapter 3 - DC-DC Converters; “Power Electronics Design Handbook-Low Power Components and Applications”, by Nihal Kularatna, Butterworth-Heinemann, USA, August 1998.Chapter 10 – Recent Advances in Telecommunication Services and Infrastructure in Sri Lanka, “Globalisation and South Asia – Retrospect and Prospect”, Edited by A.D. V. de S. Indraratna, Sri Lanka Association for the Advancement of Science, 1999.
Chapter 1 - Voltage References and Voltage Regulators; “Modern Component Families and Circuit Block Design”, by Nihal Kularatna; Butterworth-Heinemann, USA April 2000.
Chapter 10 – Logic Analysers; “Analog and Digital Instrumentation”, by Nihal Kularatna, IEE Press, London, January 2003.
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