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电子学报  2012 

联合网络容量与认知用户满意度的资源分配优化方案

DOI: 10.3969/j.issn.0372-2112.2012.07.005, PP. 1315-1322

Keywords: 容量,用户满意度,资源分配,用户调度,认知无线电

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Abstract:

机会频谱接入技术是提高频谱利用率的一种有效方法,论文综合考虑信道的时变性、子信道空闲的检测可信度、认知网络与主网络间的互干扰等因素,建立了一种最大化认知网络有效容量和认知用户满意度的多目标优化模型,提出了一种联合资源分配和用户调度的PAUS算法.仿真结果表明,在主用户分布密度较低的环境中,该模型较最大化网络有效容量模型具有更高的用户满意度;较最大化认知用户满意度模型可获得更高的网络有效容量.

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