Dynamic Power Control and Optimization Scheme for QoS-Constrained Cooperative Wireless Sensor Networks
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Publication Date
2016Journal Title
IEEE International Conference on Communications 2016
Publisher
IEEE
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Conference Object
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Feng, Z., & Wassell, I. J. (2016). Dynamic Power Control and Optimization Scheme for QoS-Constrained Cooperative Wireless Sensor Networks. IEEE International Conference on Communications 2016 https://doi.org/10.17863/CAM.11151
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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This record's DOI: https://doi.org/10.17863/CAM.11151
This record's URL: https://www.repository.cam.ac.uk/handle/1810/266090
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