Efficient Energy Management Policies for Networks with Energy Harvesting Sensor Nodes

Sharma, Vinod and Mukherji, Utpal and Joseph, Vinay (2008) Efficient Energy Management Policies for Networks with Energy Harvesting Sensor Nodes. In: Communication, Control, and Computing, 2008 46th Annual Allerton Conference on (23-26). pp. 375-383.

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Abstract

We study sensor networks with energy harvesting nodes. The generated energy at a node can be stored in a buffer. A sensor node periodically senses a random field and generates a packet. These packets are stored in a queue and transmitted using the energy available at that time at the node. For such networks we develop efficient energy management policies. First, for a single node, we obtain policies that are throughput optimal, i.e., the data queue stays stable for the largest possible data rate. Next we obtain energy management policies which minimize the mean delay in the queue. We also compare performance of several easily implementable suboptimal policies. A greedy policy is identified which, in low SNR regime, is throughput optimal and also minimizes mean delay. Next using the results for a single node, we develop efficient MAC policies.

Item Type:	Journal Article
Publication:	Communication, Control, and Computing, 2008 46th Annual Allerton Conference on
Publisher:	IEEE
Additional Information:	Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Optimal energy management policies;energy harvesting;sensor networks;MAC protocols.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	25 Aug 2009 08:56
Last Modified:	19 Sep 2010 05:41
URI:	http://eprints.iisc.ac.in/id/eprint/22287

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