Throughput of turbo coded hybrid ARQ using single-carrier MIMO multiplexing

Broadband wireless packet access will be the core technology of the next generation mobile communication systems. Very high speed and high quality packet transmissions can be achieved by the joint use of multiple-input multiple-output (MIMO) multiplexing and hybrid ARQ (HARQ). However, if single-carrier (SC) transmission is used, the throughput performance significantly degrades due to large intersymbol interference (ISI) resulting from severe frequency-selective channels. Recently, we proposed an iterative parallel interference cancellation (PIC) for MIMO multiplexing in a frequency nonselective fading channel. We now propose a frequency-domain iterative PIC for SC-MIMO multiplexing to separate signals transmitted from different antennas while achieving frequency and antenna diversity gain. We evaluate, by computer simulation, the throughput performance of turbo coded HARQ using SC-MIMO multiplexing in a frequency-selective Rayleigh fading channel.