计算机科学 ›› 2018, Vol. 45 ›› Issue (7): 104-109.doi: 10.11896/j.issn.1002-137X.2018.07.017
王振朝1,2,赵云1,薛文玲1
WANG Zhen-chao1,2,ZHAO Yun1,XUE Wen-ling1
摘要: 针对蜂窝下含D2D系统的资源分配问题,文中首次以共道链路间传输速率的公平性为目标来研究功率控制问题。首先,将建立的系统模型归结为以系统吞吐量最大化为目标的联合信道分配与功率控制的最优化问题。为了降低求解该问题的难度,将问题解耦为信道分配和功率控制两个子问题。在假设已得到最优链路匹配集合的基础上,重点研究功率控制问题,分别得出基于公平性原理的最佳发射功率的闭式解、基于系统吞吐量最大化的最佳发射功率的闭式求解域以及满足公平性前提下基于系统吞吐量最大化的最佳发射功率的闭式求解域。仿真结果表明,共道链路的公平性能得到了有效提升。
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