Space-Frequency Blind Adaptive Algorithm of MC-DS-CDMA System in Rayleigh Fading Channel with Antenna Array
Yonggang Wang · Dianzi xuebao · 2004
A multicarrier direct-sequence code-division multiple access (MC-DS-CDMA) system,which employs an antenna array at the base-station,is introduced.A space-frequency blind adaptive algorithm (SFBA) based on maximum-signal-noise ratio (MSNR) principle is presented and the analysis of the performance of this algorithm is given.Neither the knowledge of the channel condition nor any training sequence is required.Using the characteristic of the CDMA signal,this algorithm can cancel the interferences and noise,and increase the SNR.The results of simulation show the feasibility,validity and resistance to near-far problem of this algorithm in Rayleigh fading channel.