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Dynamic Power Control and Optimization Scheme for QoS-Constrained Cooperative Wireless Sensor Networks

Accepted version
Peer-reviewed

Repository DOI


Type

Conference Object

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Authors

Feng, Ziqiang 

Abstract

Cooperative transmission can significantly reduce the power consumption associated with long distance transmission in wireless sensor networks (WSNs). In this paper, we analyze the optimal power consumption of cluster-based multi-hop transmission for a cooperative WSN. With specific Quality of Service (QoS) constraints on delay and channel capacity, we show that the power optimization problem of the whole network has no closed-form solution in a slow flat Rayleigh fading environment. Thus we propose a dynamic power control and optimization (DPCO) scheme that can jointly determine the optimal number of cooperative sensors and their transmission power. We further propose a channel approximation algorithm that can significantly reduce the computational complexity of the DPCO scheme.

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Journal Title

IEEE International Conference on Communications 2016

Conference Name

IEEE International Conference on Communications (ICC), 2016

Journal ISSN

1550-3607

Volume Title

Publisher

IEEE