Exploiting frequency diversity in SDM/STBC multicarrier systems
RWS'09 Proceedings of the 4th international conference on Radio and wireless symposium
Improved linear group detection for combined spatial multiplexing/STBC systems
IEEE Transactions on Communications
High-rate groupwise STBC using low-complexity SIC based receiver
IEEE Transactions on Wireless Communications
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The theoretical error performance of double space time transmit diversity (DSTTD) system with optimum combining receiver is analyzed in this paper. By employing both spatial multiplexing and transmit diversity in one system, DSTTD provides practical tradeoff between system spectral efficiency and diversity gain. We derive exact analytical expressions to describe the symbol error rate for DSTTD systems. The effects of both diversity gain and antenna interference introduced by spatial multiplexing are quantified in the results. In addition, the performance of DSTTD system with successive interference cancellation is also investigated. Simulation results are in excellent agreement with the theoretical results obtained in this paper.