The new approach to mitigate MAI in MC-CDMA systems
Dong-Joe Kim, Jooeung Kim, Changeon Kang · 1999
An MC-CDMA using a blind interference cancellation (IC) scheme based on linearly constrained constant modulus algorithm (LCCMA) is proposed as a method for mitigating the effect of multiple access interference. An IC scheme using the constant modulus algorithm (CMA) cannot converge fast enough to yield satisfactory performance in a fading channel. Therefore the RLS-type CMA is used in place of a conventional CMA. Finally, the hybrid type of LCCMA is proposed. Simulations were performed for different number of users and paths, and results show that the proposed MC-CDMA system outperforms the conventional MC-CDMA system.