文件名称:
2006_May_WirelessComTrans
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文件大小: 424kb
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上传时间: 2010-07-22
详细说明： An energy-efficient virtual multiple-input multipleoutput (MIMO)-based communication architecture is proposed for distributed and cooperative wireless sensor networks. Assuming a space-time block coding (STBC) based MIMO system, the energy and delay efficiencies of the proposed scheme are derived using semi-analytic techniques. The dependence of these efficiency values on physical channel propagation parameters, fading coherence time and the amount of required training is also investigated. The results show that with judicious c hoice of design parameters the virtual MIMO technique can be made to provide significant energy and delay efficiencies, even after allowing for additional training overheads. ...展开收缩
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