Talks & Seminars
Designing a Hybrid Sensor Network
Prof. Sanjay Jha, University of New South Wales
Date & Time: September 20, 2006 14:30
Venue: SIC 301, KReSIT
In the past couple of years, the development of embedded system technologies have made it feasible to deploy large-scale sensor and actuator networks. These networks are revolutionizing the way in which we understand, monitor and control complex physical environment, and provide one of the missing connections between the Internet and the physical world. Because of size, form factor and cost considerations, wireless sensor networks suffer from severe resource constraints, such as communication bandwidth and range, computation power, memory and energy. Furthermore, sensor networks are expected to consist of hundreds of sensors in the future. This talk will address the challenges involved in designing robust and scalable sensor network system. In contrast to the flat networking model considered in previous sensor networks research, we have proposed a hierarchical or hybrid network architecture, which is more scalable and robust. Hybrid sensor networks consist of resource-impoverished sensors and resource-rich sensors, called micro-servers. Because of the different capabilities of heterogeneous devices in hybrid sensor networks, there is need for effective deployment and utilization of network resources. Therefore, we introduce resource provisioning and management algorithms to optimize the performance of hybrid sensor networks. A native Australian sensor network application, cane toad monitoring, motivates this research on resource provisioning and management of hybrid sensor and actuator networks. This is a challenging sensor network application characterized by high frequency sampling, complex signal processing for in-network reasoning, and wide-area sensing coverage. This talk will discuss design and implementations of a hybrid sensor network system tailored to address these challenges as well as the design and evaluation of a reverse tree-based Anycast communication paradigm for hybrid sensor and actuator networks.
Speaker Profile:
Professor Sanjay Jha (http://www.cse.unsw.edu.au/~sjha) founded the Network Research Lab at the School of Computer Science and Engineering at the University of New South Wales. His research activities cover a wide range of topics in networking including Wireless Sensor Networks, Adhoc/Community wireless networks, Resilience/Quality of Service (QoS) in IP Networks, and Active/Programmable network. Sanjay has published extensively, and served on a number of technical committees. He is the principal author of the book Engineering Internet QoS and a co-editor of the book Wireless Sensor Networks: A Systems Perspective. Prof. Jha is currently a visiting professor at KReSIT, IIT-Bombay.
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