Experimental investigation of MIMO relay channels statistics and capacity based on wideband outdoor measurements at 2.35 GHz

作     者：NIE Xin 1,2,ZHANG JianHua 1,2,LIU ZeMin 1 & ZHANG Ping 1,2 1 Key Laboratory of Universal Wireless Communications,Ministry of Education Beijing University of Posts and Telecommunications,Beijing 100876,China 2 Wireless Technology Innovation Institute,Beijing University of Posts and Telecommunications,Beijing 100876,China 

作者机构：Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing China Wireless Technology Innovation Institute Beijing University of Posts and Telecommunications Beijing China 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2011年第54卷第9期

页      面：1945-1956页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

基　　金：supported in part by China Important National Science and Technology Specific Projects (Grant No. 2009ZX03007-003-01) the National High-Tech Research & Development Program of China (Grant No.2009AA011502) the National Natural Science Foundation of China (Grant No. 60772113) 

主　　题：MIMO relay channels IMT-Advanced frequency band channel characteristics relay performance evaluation 

摘      要：Relay,which serves to enhance the performance of future communication networks,is one of the most promising techniques for IMT-Advanced *** potential performance improvement of relay is investigated in this *** investigation consists of two *** the first step,to obtain a better understanding of the fundamental properties of relay channels,we conducted outdoor measurements at 2.35 GHz with 50 MHz bandwidth in a typical urban area of *** links constituting the relay transmission,i.e.,the link between base station and relay station,the link between relay station and mobile station and the link between base station and mobile station were measured by employing a real-time channel *** main factors that affect the MIMO channel capacity,i.e.,the channel gain and effective degrees of freedom,are *** cross-polarization discrimination was obtained by utilizing space-alternating generalized expectation-maximization *** channel parameters of the three links are statistically analyzed and *** the second step,based on the measured data,the performance of different relaying schemes,i.e.,amplify-and-forward and decode-and-forward,is *** impact of RS antenna configuration on the capacity is also *** measurement and evaluation results reveal that the relay can significantly improve the system coverage and performance.