Pipelined MMSE equalizers for direct-sequence spread-spectrum CDMA channels

MMSE interference suppression has been shown to provide adaptive near-far resistant receivers for direct-sequence CDMA systems. We examine the feasibility of pipelining adaptive algorithms for this application in order to support high data rates at low power. The pipelined algorithms are simplified using relaxed look-ahead. Simulation results show that the pipelined versions of both the LMS and RLS algorithms offer performance comparable to that of their serial counterparts.

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