Energy saving in cluster-based wireless sensor networks through cooperative MIMO with idle-node participation

Li Fei*, Qiang Gao, Jun Zhang, Gang Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

6 引用 (Scopus)

摘要

In cluster-based wireless sensor networks, the energy could be saved when the nodes that have data to transmit participate in cooperative multiple-input multiple-output (MIMO). In this paper, by making the idle nodes that have no data to transmit participate in the cooperative MIMO, it is found that much more energy could be saved. The number of the idle nodes that participate in the cooperative MIMO is optimized to minimize the total energy consumption. It is also found that the optimal number of all the nodes participating in cooperative communication does not vary with the number of nodes that have data to transmit. The proposition is proved mathematically. The influence of long-haul distance and modulation constellation size on the total energy consumption is investigated. A cooperative MIMO scheme with helpnode participation is proposed and the simulation results show that the proposed scheme achieves significant energy saving.

源语言英语
页(从-至)231-239
页数9
期刊Journal of Communications and Networks
12
3
DOI
出版状态已出版 - 6月 2010
已对外发布

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