论文部分内容阅读
本文在分析瑞利衰落下正交空时分组码接收信噪比的基础上 ,得到了正交空时分组编码信道容量的表达式 ,并给出了在接收天线数一定的情况下 ,增加发送天线数所能得到的信道容量的上界。研究表明 ,在发送天线数一定时 ,瑞利衰落下正交空时分组编码信道的容量随接收天线数的增加而增加。在接收天线数一定时 ,信道容量也随着发送天线数的增加而增加 ,但当发送天线数增加到一定数量时会出现地板效应。
On the basis of analyzing the signal-to-noise ratio of Orthogonal Space-Time Block Code received by Rayleigh fading, this paper obtained the expression of capacity of Orthogonal Space-Time Block coded channel, and given the increase of the number of receive antennas, Send the number of antennas can get the upper bound of the channel capacity. The research shows that the capacity of Orthogonal Space-Time Block coded channel under Rayleigh fading increases with the number of receiving antennas when the number of transmitting antennas is constant. When the number of receiving antennas is constant, the channel capacity also increases with the number of transmitting antennas, but the floor effect may occur when the number of transmitting antennas is increased to a certain number.