Power-aware single- and multipath geographic routing in sensor networks

13 years 4 months ago

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Nodes in a sensor network, operating on power limited batteries, must save power to minimize the need for battery replacement. We note that the range of transmission has a signiﬁcant eﬀect on the power consumption of both the transmitting node and listeners. This paper ﬁrst presents a Geographical Power Eﬃcient Routing (GPER) protocol for sensor networks. Each sensor node makes local decisions as to how far to transmit: therefore, the protocol is power eﬃcient, localized, highly distributed, and scalable. In GPER, given a ﬁnal destination, each node ﬁrst establishes a subdestination within its maximum radio range. The node, however, may decide to relay the packet to this subdestination through an intermediary node or alter the subdestination if this will preserve power. Traditional deterministic geographic routing algorithms aim at achieving close to the shortest weighted paths. However, they normally stick to the same paths for the same source/destination pairs. This ma...

Shibo Wu, K. Selçuk Candan

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