注水算法对MIMO信道容量的影响

The Effect on MIMO Channel Capacity by Using Water - filling Algorithm

分析了慢衰落的独立同分布瑞利信道环境中,使用注水算法对MIMO信道容量ccdfs的影响．仿真结果表明,通过使用注水算法,可以显著的提高MIM0系统容量．随着MIM0系统发射端和接收端天线数目的增加,注水算法对系统容量的提高越显著．在低信号噪声环境中,注水算法对系统容量的改善越显著,随着信号噪声比的提高,注水算法对系统容量的影响越来越小．

The effect on i. i. d. slow rayleigh fading MIMO channel capacity CCDFS is analyzed by using water-filling algorithm. The results have shown that the MIMO channel capacity increased by using water-filling algorithm. And the more antennas in transmitting and receiving antenna array, the more capacity increased by using water-filling. In the region of low signal-to-noise, the water-filling capacity increased obviously and in the region of high signal-to-noise, there is almost no increase in capacity by using water-filling algorithm.