Title: GSP: AN ENERGY-EFFICIENT PROTOCOL FOR WIRELESS SENSOR NETWORKS

When: December 15, 2005, 10:00am – 12:00noon

Where: Room 502 IS Bldg.

Who: Debdhanit Yupho

Committee:
Dissertation Director: Dr. Joseph Kabara, Assistant Professor, DIST
Dr. Richard Thompson, Director and Professor, DIST
Dr. Prashant Krishnamurthy, Associate Professor, DIST
Dr. Vladimir Zadorozhny, Assistant Professor, DIST
Dr. Rohit Negi, Associate Professor, ECE

Abstract: Wireless sensor networks enable monitoring and control applications such weather sensing, target tracking, road monitoring, and airport lighting. Additionally, these applications require long term and robust sensing, and therefore require sensor networks to have long system lifetime. However, sensor devices are typically battery operated. To conserve energy, sensor nodes should consider not listening or receiving the data when not necessary by turning off the radio. In this research, we employ a scheme to target at the network layer issues. We proposed a simple, scalable, and energy efficient forwarding scheme, which is called Gossip-based Sleep Protocol (GSP). The analysis shows that by allowing some nodes to remain in sleep mode improves energy efficiency. The property of gossiping makes it scalable to large networks. Additionally, GSP distributes energy consumption over the entire network because the nodes go to sleep in a fully random fashion and the traffic forwarding continuously via the same path can be avoided.