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OALib Journal期刊
ISSN: 2333-9721
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在中继选择系统中的发送功率和调制方式的联合优化方案
DOI: 10.13232/j.cnki.jnju.2014.03.015
Keywords: 中继选择,功率控制,自适应调制
Abstract:
在传感器网络中，降低网络总功耗和延长网络寿命是网络设计和优化的重要要求。本文研究了采用机会性中继选择的解码前传系统，提出了一种能提高系统功率效率的中继选择调制方式和发送功率的联合优化方案。方案中，源节点和中继节点使用不同的发送功率。在给定误码率和系统参数的条件下，可以通过分布式的计算方法获得最优解。仿真结果表明所提方案能获得比协作mimo系统更高的功率效率。
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