Title :
Effect of mutual coupling between UE transmitted elements on WCDMA STOB MIMO system performance
Author :
Peng, Hong-Li ; Mao, Jun-Fa ; Yin, Wen-Yan
Author_Institution :
Center for Microwave & RF Technol., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In this paper, complex base band wide band code division multiple access (WCDMA) signal and system models containing their electromagnetic (EM) features in free space are developed. Based on the models and the EM characteristics of user equipment (UE) antennas, the effect of mutual coupling (MC) between the antennas on a WCDMA 2×4 multiple input multiple output (MIMO) system uplink performance, when using Space Time Orthogonal Block Codes (STOB) transmitting and minimum mean square error (MMSE) beam forming receiving techniques, is investigated. Two results are obtained: 1) the MC effect has ability to influence the channel estimation when transmitted antennas are identified; 2) the MC effect has the positive contributions on system SINR gain about 1.2 dB compared with that when the MC effect is not considered.
Keywords :
MIMO communication; broadband networks; code division multiple access; orthogonal codes; space-time block codes; EM characteristics; MIMO system uplink performance; UE transmitted elements; WCDMA STOB MIMO system performance; WCDMA signal; complex baseband wide band code division multiple access; electromagnetic features; minimum mean square error beam forming receiving techniques; multiple input multiple output system; mutual coupling; space time orthogonal block codes; user equipment antennas; Multiaccess communication; Spread spectrum communication; Transmitting antennas; Wireless communication; System SINR gain; UE antenna mutual coupling; WCDMA STOB+MMSE;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
