基于多终端联合传输的干扰消除方案

摘要

介绍了基于多终端联合传输的干扰消除方案.设计多终端联合传输方案,利用协作集内的多个站点将使用相同的时频资源向小区内的协作终端发送数据,根据块对角化(BD)算法和迫零(ZF)原理分别实现预编码配置,实现信道矩阵与干扰终端预编码矩阵相干,消除干扰.重点从数学的角度分析了多终端联合传输方案的实现,验证了基于SVD的块对角化和迫零实现算法,避免不必要的信息交互来消除干扰,可以有效地降低系统误码率、提升系统吞吐量.%This article introduces an interference cancellation scheme based on multiple terminals joint transmission. It designs multiple terminals joint transmission scheme using multiple sites within the collaboration set to send data to the collaboration terminals in the same time and frequency resource. It can achieve precoding configuration based on the block-Diagonalization(BD)and zero forcing(ZF) principles,which can eliminate interference between channel and precoding matrix. It emphatically analyzes the implementations of multiple terminals joint transmission from a mathematical point of view, verifies block diagonalization based on SVD and zero forcing algorithm to eliminate interference,finally reduces the system error rate effectively and improves system throughput.