NDLI: Energy efficient cooperative MIMO with Idle nodes in cluster based wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Li Fei Qiang Gao Xu Zhang
Copyright Year	2009
Description	Author affiliation: School of Electronic and Information Engineering, Beihang University, Xueyuan Road No. 37, Haidian District, Beijing, P.R. China (Li Fei; Qiang Gao; Xu Zhang)
Abstract	Energy saving is a very important design consideration in wireless sensor networks. In cluster based wireless sensor networks, the energy could be saved when the nodes in a cluster 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 can be 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 in the cluster. The proposition is proved mathematically. The influence of long-haul distance and modulation constellation size on the total energy consumption is investigated in this paper as well.
Starting Page	448
Ending Page	452
File Size	200780
Page Count	5
File Format	PDF
ISBN	9781424435845
DOI	10.1109/ISWCS.2009.5285340
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-07
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Energy consumption Design engineering Sleep Spread spectrum communication Broadcasting Routing Energy efficiency MIMO Relays
Content Type	Text
Resource Type	Article

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