Abstract
The single-carrier frequency division multiple access (SC-FDMA) is employed in the 3GPP Long Term Evolution (LTE) standard as the uplink transmission scheme. In this paper, we propose a novel successive interference cancellation (SIC) detector for multiuser detection in multiuser Multiple Input Multiple Output (MIMO) SC-FDMA system with co-channel interference (CCI). Compared to conventional SIC receiver, the proposed scheme can overcome the error propagation problem in the interference cancellation process via soft-decision output combined with channel decoder. And we also study the impact of the channel estimate error on the receiver and investigated it via simulation. Simulation results show that the proposed algorithm is significantly superior to the conventional frequency domain linear equalization based receiver in terms of bit error rate (BER) performance even the channel statement information is imperfect at the receiver.
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