The Study of CMA Blind Equalization Applied in MIMO MC DS-CDMA Systems
Xinghui Yin · Wireless Communication Technology · 2010
This paper first builds up the model of the multiple input multiple output(MIMO) multicarrier direct sequence-code division multiple access(MC DS-CDMA) system with time reversal space-time block coding(TR-STBC) transmit diversity,based on which the application of steepest decreasing constant modulus algorithm(SDCMA) for blind equalization is studied.Finally simulations are performed and the conclusions are given.The conclusions are that blind equalization of constant modulus algorithm(CMA) has low complexity and is simply realized in the MIMO MC DS-CDMA system with TR-STBC,and however CMA blind equalization can't improve system performance well when multiple access interference(MAI) is fairly severe,so other methods which mitigate or eliminate MAI must be adopted.