Event Name Seminar by Prof. Sajal K. Das on Multimedia Wireless Sensor Networks: Challenges and Solutions
Start Date 11th Feb 2009 3:00pm
End Date
Duration N/A

Title: Multimedia Wireless Sensor Networks: Challenges and Solutions


Prof. Sajal K. Das

University Distinguished Professor and Director

Center for Research in Wireless Mobility and Networking (CReWMaN)

The University of Texas at Arlington


Program Director, National Science Foundation

Time and Date: 3:00 pm, 11 Feb 2009

Place: Brown Theatre, EEE, University of Melbourne


Recent advancements in embedded systems, sensors and wireless communications technology have led to the possibility of building multimedia wireless sensor networks (MWSNs) including video sensors. Such networks have attractive applications in civilian, military, industry, and government sectors as they can effectively act as the human-physical world interface in future digital world through sensing and actuating. However, the inherent characteristics of MWSNs typified by extremely scarce resources (bandwidth, CPU, memory and battery power), high degree of uncertainty, and distributed operations and control pose significant challenges in providing the desired information quality, assurance, reliability, security and privacy. This is particularly important for mission critical applications such as health care and pervasive security that involve MWSNs.

In this talk, we will examine uncertainty-driven unique challenges and key research issues in the information intensive multimedia wireless sensor networks in the areas of data quality, aggregation (or fusion), dissemination, routing, coverage and connectivity, trust, and security (due to both internal and external attacks). We will also present our novel solutions to some of these problems and conclude with future research directions.


Dr. Sajal K. Das received B.S. degree from Calcutta University (1983), M.S. degree from Indian Institute of Science at Bangalore (1984), and Ph.D. degree from University of Central Florida (1988), all in computer science. Currently he is a Distinguished Scholar Professor of Computer Science and Engineering and the Founding Director of the Center for Research in Wireless Mobility and Networking (CReWMaN) at the University of Texas at Arlington (UTA), and also a Program Director in the Division of Networks and Computer Systems at the National Science Foundation. Dr. Das is a Visiting Professor at the Indian Institute of Technology (IIT) at Kanpur; Honorary Professor of Fudan University in Shanghai and Advisory Professor of Beijing Jiaotong University, China; and Visiting Scientiest at the Institute of Infocomm Research (I2R), Singapore. He has visited numerous universities, research organizations, government and industry labs worldwide for collaborative research and invited talks. He is frequently invited as keynote speaker at international conferences and symposia.

Dr. Das' current research interests include wireless and sensor networks, design and modeling of smart environments, mobile and pervasive computing, security, mobile grid computing, biological network modeling, applied graph theory and game theory. He has published over 400 technical papers in international journals and conferences, and over 35 invited book chapters in these areas. He holds six US patents in wireless networks and mobile internet. He coauthored the books "Smart Environments: Technology, Protocols, and Applications" (John Wiley, 2005), and "Mobile Agents in Distributed Computing and Networking (Wiley, 2008). Dr. Das is a recipient of seven Best Paper Awards in such conferences as EWSN'08, MUBICA'07, IEEE PerCom'06, ACM MobiCom'99, ICOIN'02, ACM MSwiM'00 and ACM/IEEE PADS'97. He is a recipient of IEEE Engineer of the Year Award (2007), UTA Academy of Distinguished Scholars Award (2006), University Award for Distinguished Record of Research (2005), College of Engineering Research Excellence Award (2003), and Outstanding Faculty Research Award in Computer Science (2001 and 2003).

Dr. Das serves as the Founding Editor-in-Chief of Pervasive and Mobile Computing (PMC) journal, and Associate Editor of IEEE Transactions on Mobile Computing, ACM/Springer Wireless Networks, IEEE Transactions on Parallel and Distributed Systems, and Journal of Peer-to-Peer Networking. He is the founder of IEEE PerCom and IEEE WoWMoM conferences. He has served as General or Technical Program Chair and TPC member of numerous IEEE and ACM conferences.

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