Geography-informed Energy Conservation for Ad Hoc Routing

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Geography-informed Energy Conservation for Ad Hoc Routing (2001)

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by Ya Xu , John Heidemann , Deborah Estrin

Venue:	ACM MOBICOM
Citations:	1043 - 21 self

BibTeX

@INPROCEEDINGS{Xu01geography-informedenergy,
    author = {Ya Xu and John Heidemann and Deborah Estrin},
    title = {Geography-informed Energy Conservation for Ad Hoc Routing},
    booktitle = {ACM MOBICOM},
    year = {2001},
    pages = {70--84},
    publisher = {}
}

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Abstract

We introduce a geographical adaptive fidelity (GAF) algorithm that reduces energy consumption in ad hoc wireless networks. GAF conserves energy by identifying nodes that are equivalent from a routing perspective and then turning off unnecessary nodes, keeping a constant level of routing fidelity. GAF moderates this policy using application- and system-level information; nodes that source or sink data remain on and intermediate nodes monitor and balance energy use. GAF is independent of the underlying ad hoc routing protocol; we simulate GAF over unmodified AODV and DSR. Analysis and simulation studies of GAF show that it can consume 40% to 60% less energy than an unmodified ad hoc routing protocol. Moreover, simulations of GAF suggest that network lifetime increases proportionally to node density; in one example, a four-fold increase in node density leads to network lifetime increase for 3 to 6 times (depending on the mobility pattern). More generally, GAF is an example of adaptive fidelity, a technique proposed for extending the lifetime of self-configuring systems by exploiting redundancy to conserve energy while maintaining application fidelity.

Keyphrases

geography-informed energy conservation ad hoc routing network lifetime increase energy consumption unnecessary node sink data constant level system-level information self-configuring system adaptive fidelity intermediate node monitor ad hoc balance energy use node density ad hoc wireless network geographical adaptive fidelity simulation study unmodified ad hoc application fidelity unmodified aodv four-fold increase network lifetime mobility pattern

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