Space-frequency turbo coded OFDM for future high data rate wideband radio systems

A new bandwidth and power efficient signaling scheme is proposed that achieves high data rates over wideband radio channels exploiting the bandwidth efficient OFDM modulation, multiple transmit and receive antennas and large frequency selectivity offered in typical low mobility indoor environments. Owing to its maximum transmit diversity gain and large coding gain, space-frequency turbo coded modulation is demonstrated to perform within 2.5 dB of the 10% outage capacity for the variety of practical wideband MIMO radio channels, strongly outperforming other space-frequency coding schemes recently proposed in the literature. A simple way of combining space-frequency coding with OFDM delay diversity for cost effective exploitation of more than two transmit antennas is also proposed.

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