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提出了新型上行链路非码本预编码传输方法,可用于局域网或广域网无线通信系统中.本方法包含发送端基于几何均值分解预编码算法和接收端正交三角(QR)分解的混合并行干扰消除/串行干扰消除(PIC/SIC)检测算法两部分.本传输方法克服了现有上行链路码本预编码复杂以及反馈码本序号占用信道资源的缺点,在几何均值分解预编码基础上,对QR分解的混合并行干扰消除/串行干扰消除检测算法进行了分析和仿真.仿真结果表明几何均值分解预编码结合接收端QR分解的混合PIC/SIC检测算法性能较好、复杂度较低,有利于应用于无线局域网上行接收端的信号检测.
A new uplink non-codebook precoding transmission method is proposed, which can be used in local area network or wide area network wireless communication system.The method includes the hybrid parallel interference cancellation based on the geometric mean decomposition pre-coding algorithm and the receiver quadrature triangle (QR) decomposition at the transmitting end, / Serial interference cancellation (PIC / SIC) detection algorithm.This transmission method overcomes the shortcomings of the existing uplink codebook precoding complexity and the feedback codebook serial number occupying channel resources. Based on the geometric mean decomposition precoding, The hybrid parallel interference cancellation / serial interference cancellation detection algorithm based on QR decomposition is analyzed and simulated.The simulation results show that the hybrid PIC / SIC detection algorithm based on geometric mean decomposition pre-coding and receiving QR decomposition has good performance and low complexity, Which is beneficial to the signal detection applied to the wireless local area network uplink receiver.