机会型高效节能协同中继的动态时间与功率分配

John W. Heron, Hongjian Sun
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引用次数: 1

摘要

无线通信设备功耗的指数级增长和电池容量的缺乏进展正在增加对更节能(EE)无线网络的压力。针对有和无速率约束的两种中继选择方案:机会码转发(ODF)和机会码能效(OEE),提出了一种最佳EE时间分配算法。通过动态优化源和中继之间的传输时间,可以同时提高EE和最小化容量损失。在协作节点数量和位置随机分布的多用户场景下进行的仿真验证了该算法在提高网络性能方面的有效性,并且对动态和静态网络都具有适用性。结果表明,一个唯一的全局最优的时间和功率分配依赖于继电器的位置。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic Time and Power Allocation for Opportunistic Energy Efficient Cooperative Relay
Exponential growth in power consumption of wireless communication devices and lack of progress in battery capacity are increasing pressure for more energy efficient (EE) wireless networks. This paper presents an algorithm for optimum EE time allocation for two cooperative relay selection schemes: opportunistic decode-and- forward (ODF) and opportunistic energy efficiency (OEE) with and without rate constraint. By dynamically optimising transmission time between source and relay it is possible to simultaneously improve EE and minimise capacity loss. Simulation in a multi-user scenario with randomly distributed number and location of cooperative nodes demonstrates the algorithm's effectiveness for improving network performance and applicability to both dynamic and static networks. Results imply a unique globally optimum time and power allocation dependent on relay position.
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