針對色噪聲背景下MIMO塊平坦衰落信道進行了估計和優(yōu)化，并以信道估計的優(yōu)化結(jié)果為基礎(chǔ)，分析了估計信道的互信息量下限和系統(tǒng)的容量下限，提出了利用注水算法來優(yōu)化發(fā)射端天線陣列的功率分配，以提高系統(tǒng)容量下限。仿真結(jié)果表明利用信道估計的優(yōu)化結(jié)果，同時通過發(fā)送功率優(yōu)化分配，可使MIMO系統(tǒng)容量下限有明顯提高。

The Multi-Input and Multi-Output (MIMO) block flat-fading channel is estimated and optimized with colored noise. The lower bounds of mutual information and system capactiy are analyzed based on the optimization result of estimated channel. The approach to improve the lower bound of system capacity by the optimized power allocation of transmit antennas array through waterpouring algorithm is presented. The simulation result shows that some capacity gain is obtained by transmitter power allocation according to the optimal result of estimated channel.