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On a space time parallel iterative coding scheme and its performance evaluation

This paper proposes a class of space time parallel (STP) iterative coding scheme to combat fading for wireless MIMO systems. In addition to the inner iterations, the super iterations (or outer iterations) and symbol interleaved space time coding are employed to achieve additional time diversity and coding gain in fading channel. The numerical and simulation results demonstrate that the STP iterative coding scheme may make use of all the advantages of transmit diversity and time diversity in wireless MIMO systems. In particular, in the case of STP turbo codes, about 1 dB BER enhancement and half calculation time reduction from conventional space time (ST) turbo codes designs are achieved; in the case of low density parity check (LDPC) codes, about 0.8 dB improvement from conventional ST LDPC designs is obtained. Copyright © 2003 John Wiley & Sons, Ltd.