Timing Acquisition for Distributed Antenna Systems by Exploiting the Advantages of Cooperation over Flat-Fading Channels  

作　　者：QING Chaojin SHAO Shihai TANG Youxi 

机构地区：[1]National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 610054, China

出　　处：《Chinese Journal of Electronics》2011年第2期337-342,共6页电子学报（英文版）

基　　金：This work is supported in part by the National Natural Science Foundation of China （No.60832007, No.60901018, No.609002027, No.60602009）, ＂863＂ Project （No.2009AA01Z236） and Key Project of China （No.2009ZX03003-008-01, No.2008BAH30B11）.

摘　　要：In the fiat Rayleigh channels, two remote antennas are assumed at the base station for receiving the signal transmitted from the mobile station with a single antenna. By utilizing the coverage range of each remote antenna, a constraint is exploited to associate the timedelays from the mobile station to the two remote antennas. With this constraint, a maximum likelihood-based cooperative timing acquisition method is proposed to improve the probability of correct acquisition for each remote antenna. Moreover, a lower bound of the probability of correct acquisition is derived to evaluate the performance of the proposed method. By the analysis and simulations, it is shown that the probability of correct acquisition for each remote antenna can be improved by the cooperation between the two remote antennas.

关 键 词：Cooperative timing acquisition Distributed antenna systems Maximum likelihood estimator Remote antenna. 

分 类 号：TN911.22[电子电信—通信与信息系统] TN820.15[电子电信—信息与通信工程]