Title :
Effect of frequency offset on the performance of asynchronous MC-CDMA systems in a correlated Rayleigh fading channel
Author :
Shi, Qinghua ; Latva-aho, Matti
Author_Institution :
Centre for Wireless Commun., Oulu Univ., Finland
Abstract :
The effect of frequency offset on the performance of asynchronous MC-CDMA systems in a correlated Rayleigh fading channel is investigated. Numerical results show that MC-CDMA systems can allow a frequency offset of up to 10 percent of the frequency spacing between adjacent subcarriers without significant performance loss. We also find that maximal ratio combining (MRC) performs better than equal gain combining (EGC) for asynchronous MC-CDMA systems with frequency errors
Keywords :
Rayleigh channels; code division multiple access; diversity reception; radio networks; time-varying channels; EGC; MRC; asynchronous MC-CDMA systems; correlated Rayleigh fading channel; equal gain combining; frequency errors; frequency offset; maximal ratio combining; performance; AWGN; Bit error rate; Diversity reception; Downlink; Fading; Frequency estimation; Multiaccess communication; Multicarrier code division multiple access; Rayleigh channels; Wireless communication;
Conference_Titel :
Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7010-4
DOI :
10.1109/ICII.2001.983618
