基于OFDM定时捕获的分布式天线位置设计  

Distributed antenna location design based on timing acquisition of OFDM

作　　者：卿朝进[1] 夏天[1] 唐友喜[1] 查光明[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家重点实验室,四川成都611731

出　　处：《电子技术应用》2011年第5期118-120,125,共4页Application of Electronic Technique

基　　金：国家自然科学基金(60832007;60901018;60902027;60602009);国家863计划(2009AA01Z236);国家科技支撑计划(2008BAH30B11);国家重大科技专项(2009ZX03003-008-01);中央高校基金(ZYGX2009J010;ZYGX2009J008)

摘　　要：在线形小区中,基站的两分布式接收天线接收来自单天线移动台的发射信号。基于OFDM定时捕获,提出利用最小最大准则进行线形小区中两分布式天线的最优位置设计。根据最小最大准则,最优天线位置根据最坏捕获情况最小化得到。仿真结果表明,当移动台位置在线形小区中均匀分布时,两分布式接收天线应根据线形小区中心对称放置。In a linear cell, two distributed receive antennas at base station（BS） are assumed for receiving the signal transmitted from the mobile station （MS） with a single antenna. Based on the timing acquisition of OFDM, the optimal antenna location design for the two distributed antennas in the linear cell is proposed according to the minimax criterion. By exploiting the minimax criteri- on, the optimal antenna locations can be obtained according to the best system performance that the probability of worst ease is minimized. Simulation results illustrate that the distributed receive antennas should be located symmetrically about the linear cell center when the distribution of MS location is uniform.

关 键 词：天线位置设计 分布式天线系统 正交频分复用 定时捕获 

分 类 号：TN914[电子电信—通信与信息系统]