A Comprehensive Energy Conservation
Solution for Mobile Ad Hoc Networks
July 2005
John A. Stine, The MITRE Corporation
Gustavo de Veciana, The MITRE Corporation
ABSTRACT
Multiple energy conserving approaches have been proposed for wireless
networks that are exploited by the link layer and network layer protocols.
Unfortunately, integrating these approaches in ad hoc networks is difficult. Due to the temporally
random nature of access protocols, methods based on entering low energy
states cause severe degradation of network capacity and also degrade
the performance of routing protocols. Meanwhile, methods used by routing
protocols that give preference to shorter links or attempt to balance
load to prolong the longevity of the plurality of nodes require commitment
to one or the other of these metrics without regard to link layer approaches.
In this paper, we show that through the integrated use of our access
and routing protocols, Synchronous Collision Resolution (SCR) and Node
State Routing (NSR), that these types of energy conservation mechanisms
can be managed simultaneously. We conclude with a simple simulation of
the integrated use of these protocols. The simulations demonstrate that
these protocols reduce the rate of energy consumption by the network
but that in determining their effectiveness, the end-to-end throughput
of the network must be considered.
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