Multiuser wavelet based MC-CDMA receiver with linearly constrained constant modulus IQRD-RLS algorithm
نویسندگان
چکیده
In this paper, a new robust linearly constrained constant modulus (LCCM) approach with inverse QRD-RLS algorithm is derived and applied to the multi-carrier code division multiple access (MC-CDMA) system. The proposed algorithm can be employed to reduce the MA1 efficiently, due to other users and combat the mismatch problem, when channel parameters could not be estimated perfectly. We show that it outperforms the conventional LCCM-gradient algorithm [5], in t e v of output SINR and improvement percentage index, for MA1 cancellation under mismatch environment. Moreover, the Wavelet-based structure can be used to further improve the performance of the proposed algorithm with pure MC-CDMA system.
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