基于信道质量信息的机会频谱接入策略

被引:2
作者
彭晓东
肖立民
钟晓峰
周世东
机构
[1] 清华大学电子工程系,微波与数字通信技术国家重点实验室,清华信息科学与技术国家实验室
关键词
机会频谱接入; 信道质量; 有效吞吐率; 最优性;
D O I
10.16511/j.cnki.qhdxxb.2014.04.015
中图分类号
TN92 [无线通信];
学科分类号
080402 ; 080904 ; 0810 ; 081001 ;
摘要
机会频谱接入被认为是一种实现异构无线网络间频谱资源共享的有效途径之一。之前的相关研究很少考虑信道质量信息对于机会频谱接入性能的影响。针对这一问题,该文综合考虑主用户信道占用信息和次用户的信道质量信息来设计机会频谱接入策略,并通过求解凸优化问题获得了一种基于信道质量门限的策略。该策略能够最大化次用户获得的有效吞吐率,同时满足主用户对传输质量的要求,且在单信道场景下具有最优性。仿真结果表明:该策略能够显著提高次用户的有效吞吐率。
引用
收藏
页码:469 / 473+479 +479
页数:6
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