Relay Selection for Geographical Forwarding in Sleep-Wake Cycling Wireless Sensor Networks

The authors' work is motivated by geographical forwarding of sporadic alarm packets to a base station in a Wireless Sensor Network (WSN), where the nodes are sleep-wake cycling periodically and asynchronously. They seek to develop local forwarding algorithms that can be tuned so as to trade-off the end-to-end delay against a total cost, such as the hop count or total energy. Their approach is to solve, at each forwarding node en-route to the sink, the local forwarding problem of minimizing one-hop waiting delay subject to a lower bound constraint on a suitable reward offered by the next-hop relay; the constraint serves to tune the trade-off.

Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: Nov 2011 Format: PDF

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