Abstract-In this letter, we introduce five different strategies of linear transmit signal processing for multiuser multiple-input multiple-output (MIMO) systems and provide performance comparisons in terms of maximum throughput in both uncorrelated and correlated channels when the number of transmit antennas is much larger than the number of receive antennas. It is shown that the multiuser MIMO schemes are preferable to time-division multiple-access (TDMA)-based MIMO schemes, hence demonstrating the power of multiuser MIMO signal processing. Our work also indicates possibilities for future research in finding efficient suboptimal algorithms. As an example, we show that our multiuser MIMO decomposition scheme can improve the maximum throughput compared to TDMA-based MIMO schemes for large number of transmit antennas or high transmit power. Index Terms-Multiple-input multiple-output (MIMO) systems, multiuser decomposition, multiuser MIMO, transmit single processing.
In REF the authors compared the performance in terms of capacity and maximum throughput, of a BC multiuser MIMO system and a MIMO timedivision multiple-access (TDMA) MIMO system.
On strategies of multiuser MIMO transmit signal processing
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Mathematics Computer Science