计算机工程Issue(3)：283-286,4.DOI:10.3969/j.issn.1000-3428.2015.03.053
分布式天线系统中基于天线选择的容量分析
Capacity Analysis Based on Antenna Selection in Distributed Antenna System
摘要
Abstract
The downlink capacity performance of Distributed Antenna System ( DAS ) is investigated over composite fading channels. Based on this, the ergodic capacity of DAS with Transmit Antenna Selection ( TAS ) is analyzed. According to the capacity performance analysis,an approximate closed-form expression of the average channel capacity is derived by employing numerical integration formulas. It can avoid inaccuracy of existing capacity expression which is obtained by means of log-normal approximation. Simulation results show that the derived expression can match the simulation well,and thus it can evaluate the capacity performance of DAS downlink effectively.关键词
分布式天线系统/各态历经容量/发送天线选择/复合信道/对数正态/阴影衰落Key words
Distributed Antenna System ( DAS )/ergodic capacity/Transmit Antenna Selection ( TAS )/composite channel/log-normal/shadow fading分类
信息技术与安全科学引用本文复制引用
王莹,谭文婷,吴彬彬,李洋..分布式天线系统中基于天线选择的容量分析[J].计算机工程,2015,(3):283-286,4.基金项目
中央高校基本科研业务费专项基金资助项目 （）
江苏省高校优势学科建设工程基金资助项目 （）
南京航空航天大学电子信息工程学院创新与创优基金资助项目(DZS201201) （DZS201201）
南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj201429)。 （实验室）
