Study on optimal weight matrix of MIMO-STBC transmitter
Zongxin Wang · Journal of Circuits and Systems · 2005
With partial channel state information at the transmitter, a novel transmitter based on the optimal weight matrix is proposed in MIMO-STBC system. Using the channel information fed from receiver to transmitter, the optimal weight matrix is derived with minimizing Chernoff bound of pairwise error probability. Furthermore, a computation method of the optimal weight matrix is presented when feedback errors exist. Simulations show that the performance of MIMO-STBC system with the optimal transmit weight matrix is obviously better than that without weight matrixes added.