Blind Interference Suppression Using Code-Constrained Constant Modulus Algorithm Based on Minimum Kurtosis Criterion
Fang Hong-yu · Journal of Shantou University · 2007
A code-constrained Constant Modulus Algorithm(CMA) initialized by delay-hypothesized matched filter based on minimum kurtosis criterion is proposed in this paper.Code-constrained CMA imposes constraints on the equalization coefficients.It is ensured that the desired signals are not cancelled in DS-CDMA system in minimizing the constant modulus cost function to suppress interference.It is demonstrated by simulation results that the proposed algorithm has better performance in terms of lower mean squared error(MSE) and higher output signal to interference plus noise ratio(SINR).