Energy efficiency of virtual MIMO transmission schemes for cluster-based wireless sensor networks |
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| Authors: | DING Jie LIU Dan-pu WU Hua-ri Key Laboratory of Universal Wireless Communication Ministry of Education Beijing University of Posts Telecommunications Beijing China |
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| Institution: | DING Jie1,LIU Dan-pu1,WU Hua-ri2 1.Key Laboratory of Universal Wireless Communication,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China 2.Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China |
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| Abstract: | In this paper,a cluster-based virtual multiple-input multiple-output(MIMO)transmission architecture is proposed for energy-constrained wireless sensor networks.In the proposed architecture,instead of using cluster members as cooperative nodes,multiple cluster heads cooperate to form virtual antenna array so that MIMO transmission can be implemented.According to the MIMO techniques used in this architecture,two different schemes,vertical Bell Laboratories layered space-time(V-BLAST)based cluster heads cooper... |
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| Keywords: | energy efficiency MIMO STBC V-BLAST wireless sensor networks |
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