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静态分簇下的大规模分布式天线系统用户调度算法 被引量:1

User Scheduling Algorithms for Large-scale Distributed Antenna System Based on Static Clustering
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摘要 在大规模分布式天线系统中,静态分簇和用户调度带来的簇间干扰问题会导致系统和速率下降。针对这个问题,提出了一种两阶段贪婪用户调度算法。首先,每个簇内并行实施贪婪用户调度;然后,从全局上再次利用贪婪算法来剔除簇间干扰较大、服务质量较差的用户,使得系统和速率进一步提升。仿真结果表明,随着不同系统参数的改变,两阶段贪婪用户调度算法可有效提高系统和速率。 In a large-scale distributed antenna system,static clustering and user scheduling will redeuce thesystem sum-rate due to inter-cluster. To solve this problem,a two-stage greedy user scheduling algorithm isproposed. First,each cluster uses greedy user scheduling parallelly. Then,from the overall situation,thegreedy algorithm is utilized to remove some users with larger inter-cluster interferences and poor quality ofservice,thus further improving the system sum-rate. Simulation results show that with different system parameters,the two-stage greedy user scheduling algorithm can effectively improve the system sum-rate.
出处 《电讯技术》 北大核心 2016年第10期1075-1080,共6页 Telecommunication Engineering
基金 国家自然科学基金资助项目(61401240 61501264) 江苏政府留学奖学金项目(JS-2014-206) 东南大学移动通信国家重点实验室开放研究基金项目(2015D02) 南通大学博士科研启动基金项目(14B08)~~
关键词 大规模分布式天线系统 静态分簇 用户调度 贪婪算法 large-scale distributed antenna system static clustering user scheduling greedy algorithm
作者简介 高翔(1991-),男,江苏常州人,2014年获学士学位,现为硕士研究生,主要研究方向为大规模分布式天线系统;Email:394079233@qq.com 孙强(1980-),男,江苏南通人,2014年获博士学位,现为副教授,主要研究方向为MIMO无线通信系统; 通信作者:sunqiang@ntu.edu.cn 徐晨(1960-),男,江苏南通人,教授,主要研究方向为无线通信; 王珏(1985-),男,山东聊城人,2014年获博士学位,主要研究方向为大规模MIMO.
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