Title :
Antenna Selection in Space Time Block Coded MC-CDMA Systems
Author :
Yao, Gavin Xiaoxu ; Liu, Z.W. ; Xu, Y.G. ; Gong, X.F.
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol.
Abstract :
Antenna selection (AS) is herein applied to space-time block coded (STBC) multi-carrier code division multiple access (MC-CDMA) system to improve the downlink system performance while reducing system cost, by choosing a subset of antennas from all available ones. Optimal antenna subset is obtained at the receiver with channel state information (CSI) estimated, and then fed back through a low bit rate, zero-delay and error-free path. The STBC scheme is applied to the system with antennas selected from available. The system structure of the transmitter and the receiver is illustrated. The downlink performance of such a system in frequency selective, spatially independent and correlated fading channels is analyzed. Some representative simulations are taken to validate the analysis
Keywords :
antenna arrays; block codes; fading channels; radio links; space-time codes; MC-CDMA Systems; antenna selection; channel state information; correlated fading channels; downlink system performance; error-free path; frequency selective channels; multicarrier code division multiple access; receiver; space time block code; spatially independent channels; transmitter; zero-delay; Bit rate; Channel state information; Costs; Downlink; Frequency; Multicarrier code division multiple access; Receiving antennas; State estimation; System performance; Transmitters;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345757
