无线传感器网络中一种新型节能协同传输模式转换策略研究An Energy-Efficient Mode Switch Scheme for Cooperative Transmission in Wireless Sensor Networks
温晓君
摘要(Abstract):
本文针对无线传感器网络中基于簇的时分协作MIMO通信系统,提出一种最优化的组内、组间功率和时隙资源分配算法,在保证最大数据吞吐率的同时满足可靠性要求。并通过建立传输能耗模型,提出一种全新的基于路径损耗的传输模式切换策略。根据协同通信中协作节点和中继节点的几何位置,通信系统得以在SISO、协作式MISO、单跳、多跳等多种传输模式间转换。转换门限的选择算法在该策略中也一并提出,并可反向得出协作节点和中继节点的存在域。
关键词(KeyWords): 无线传感器网络;协作MIMO;资源分配;路径损耗;模式切换
基金项目(Foundation):
作者(Author): 温晓君
DOI: 10.16453/j.issn.2095-8595.2014.01.014
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