Two Novel IIR Channel Shortening Algorithms in CDMA Systems
In high-speed CDMA wireless communication systems, inter-symbol interference may become serious because of the usage of spreading sequence with small spreading factor. Channel shortening technology is an effective way to suppress ISI and improve system performance. A novel adaptive IIR channel shortening algorithm is proposed in this paper to conquer floor effect in existing channel shortening algorithms. And then the application of this algorithm to SIMO systems is discussed. After that, another improved SIMO channel shortening algorithm with virtual channels is proposed to offer better system performance. Simulation results show that the two algorithms work better than conventional FIR channel shortening algorithm in SIMO environment.
XU Lan WANG Zong-xin
Department of Communication Science and Engineering Fudan University Shanghai 200433, China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
1002-1006
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）