论文部分内容阅读
本文研究了智能天线在FDD-CDMA中的下行链路的应用，利用上行链路接收数据，估计了下行链路的信道相关矩阵和对其它小区用户的相对干扰总量，给出下行链路的波束形成方法，即在保证一定的有效发送功率的同时，使得对其他小区的用户干扰最小．计算机仿真表明：在多小区蜂窝CDMA环境中，采用上述方法比仅保证用户方向的最大发送功率，有更小的中断率
In this paper, we study the application of smart antenna in downlink in FDD-CDMA. We use the uplink to receive data, estimate the downlink channel correlation matrix and the relative interference to the users in other cells, Beamforming method, that is, to ensure a certain effective transmission power at the same time, making the smallest interference to other users of the cell. Computer simulations show that in the multi-cell cellular CDMA environment, the above method has a smaller interrupt rate than the maximum transmit power that only ensures the user direction