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认知无线电网络子载波和功率分配

DOI: 10.13190/jbupt.200804.102.014, PP. 102-106

Keywords: 认知无线电,资源分配,注水算法,子载波分配

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Abstract:

在干扰温度和总发送功率的限制条件下,提出了一种基于正交频分多址(OFDMA)接入方式的认知无线电网络上行链路子载波和功率分配算法,目标为最大化系统吞吐量。算法在初始分配方案的基础上不断调整,最终逼近最优分配方案。仿真结果表明,提出的算法在大幅度降低计算复杂度的同时,达到了接近穷举方案的性能。

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