Title :
Performance of MC-CDMA Based on Feedback Pre-equalization Method in Uplink Channel
Author :
Xiao-peng, Yang ; Hao-shan, Shi ; Kun, Yao
Author_Institution :
Electron. Inf. Inst., Northwestern Polytech. Univ., Xi´´an
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
This paper proposes a feedback pre-equalization (F-PE) method based on channel estimation in uplink channel. The transmitter signal is pre-equalized in transmitter by channel estimate information, which form downlink pilot channel. In receiver, the orthogonality of each spreading code is restored, but the power of noise isn´t increased. So, the BER performance is improved. The F-PE method shows the best BER performance among EGC, MRC, and ORC methods both in synchronous and asynchronous channel
Keywords :
channel estimation; code division multiple access; error statistics; fading channels; multipath channels; multiuser detection; radio receivers; radio transmitters; MC-CDMA; bit error rate; downlink pilot channel; feedback preequalization method; multicarrier code division multiple access; transmitter signal preequalization; uplink channel estimation; Bandwidth; Bit error rate; Diversity reception; Fading; Force feedback; Frequency domain analysis; Multicarrier code division multiple access; Resists; Signal restoration; Transmitters;
Conference_Titel :
Innovative Computing, Information and Control, 2006. ICICIC '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7695-2616-0
DOI :
10.1109/ICICIC.2006.331
