Power Allocation Policy for Distributed Estimation in Wireless Networks

Power Allocation Policy for Distributed Estimation in Wireless Networks

Title : Power Allocation Policy for Distributed Estimation in Wireless Networks
Authors :
Matei, Ion
Baras, John, S.
Conference : 50th IEEE Conference on Decision and Control Conference (CDC-ECC 2011) pp. 7275-7280
Date: December 12 - December 15, 2011

We consider a sensor network monitoring a stochastic process. The sensors exchange information over wireless communication channels affected by noise. The goal of the sensors is to compute accurate estimates of the state of the stochastic process under limited energy available for communications. We introduce a distributed algorithm which computes a power allocation scheme aimed at ensuring accurate state estimates and at saving communication energy. The distributed algorithm arise from solving an approximate convex optimization problem with constraints. We present how the power allocation scheme can be used for performing distributed estimation in the case where measurements are shared between sensors.

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