Energy-Efficient Dynamic Source Routing in Ad-Hoc Wireless Networks

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Executive Summary

The authors present Span-DSR and DSR-PSM, two power-saving algorithms designed for ad-hoc wireless networks using source routing. Span-DSR reduces power consumption and has desirable fairness properties, while maintaining a connected backbone of nodes to route packets. Span-DSR's power saving protocol increases system lifetime by a factor of two better than standard Dynamic Source Routing (DSR), while maintaining slightly higher loss rates under congestion. DSR-PSM is a simpler and purely reactive approach that also shows considerable power savings in comparison with standard DSR. However, DSR-PSM does not perform as well as Span-DSR with respect to energy efficiency, loss rate or fairness.

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