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Wireless Networks
Erschienen in: Wireless Networks 7/2018

22.03.2017

Performance analysis of energy efficient cooperations in WSNs over frequency-selective channels

verfasst von: Jianjie Tian, Stevan Berber, Gerard Rowe

Erschienen in: Wireless Networks | Ausgabe 7/2018

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Abstract

Energy efficient cooperations in wireless sensor networks (WSNs) subject to flat fading channels have attracted a considerable amount of attention recently. However, wireless channels of WSNs operating in indoor environments are supposed to have a frequency-selective nature, yet a comprehensive analysis of cooperative communications in these WSNs practically does not exist. Therefore, this paper has studied energy efficient cooperative communications over frequency-selective fading channels. Investigations of the energy efficient decode-and-forward and the adaptive decode-and-forward cooperations are provided in terms of the optimal power allocation and the partner selection region. The study is based on a network geometry of a fixed source node and a destination node with a range of potential partner node locations. Numerical results of optimal power allocation and the partner selection region are generated, and contour graphs of the resulting cooperative energy savings achieved from cooperations are provided using MATLAB. Results have indicated that cooperations can seek for potential partner nodes within a specified region to form energy efficient communications in WSNs operating in indoor environments. Furthermore, we have compared our results to the existing work which studies cooperations over flat fading channels, and several interesting findings have been revealed.
Vorheriger Artikel ADFC-CH: adjusted disjoint finite cover rendezvous algorithms for cognitive radio networks
Nächster Artikel Outage performance of downlink communications in cognitive-based two-tier networks: cooperative and non-cooperative femtocells

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Metadaten
Titel
Performance analysis of energy efficient cooperations in WSNs over frequency-selective channels
verfasst von
Jianjie Tian
Stevan Berber
Gerard Rowe
Publikationsdatum
22.03.2017
Verlag
Springer US
Erschienen in
Wireless Networks / Ausgabe 7/2018
Print ISSN: 1022-0038
Elektronische ISSN: 1572-8196
DOI
https://doi.org/10.1007/s11276-017-1495-0

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