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认知SC-FDMA系统中考虑用户最小速率需求的上行资源分配

DOI: 10.13190/j.jbupt.2014.01.024, PP. 107-111

Keywords: 认知,上行资源分配,最小传输速率

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Abstract:

提出了一种认知单载波频分复用接入(SC-FDMA)系统中的上行资源分配策略,通过定义新的边际效用函数,进行联合的资源块与功率分配.仿真结果表明,相比于已有上行资源分配策略,所提算法一方面可以以轻微的网络吞吐率损失为代价,实现资源块连续性分配,并很好地保护用户最小传输速率约束;另一方面,也可以有效规避对主网络的干扰,保证主网络正常通信.

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