信道预测联合收发分集的正交信号误码性能

发布时间：2018-03-19 16:16

本文选题：瑞利衰落信道　切入点：正交信号　出处：《电信科学》2017年05期 　论文类型：期刊论文

【摘要】：为解决采用最小均方误差(MMSE)信道预测的发射天线选择(TASP)/接收天线最大比合并(MRC)的无线通信系统设计问题,利用抛物柱面函数以及高斯Q函数的近似表达式和矩生成函数(MGF)法,分别推导了瑞利块衰落信道上采用TASP/MRC天线分集的相干检测M进制正交和双正交信号的平均误符号率(ASER)精确表达式以及正交信号ASER的近似表达式。数值计算和仿真结果验证了采用TASP/MRC和相干检测的正交/双正交ASER精确表达式的正确性以及正交信号ASER近似表达式的准确性。上述M进制正交/双正交信号ASER精确或近似表达式,可用于设计采用相干检测M进制正交和双正交信号的TASP/MRC天线分集系统,并能够快速地确定收发天线数和信道预测器级数等参数,避免耗时的计算机仿真。
[Abstract]:In order to solve the design problem of wireless communication system with minimum mean square error (MMSE) channel prediction, using the parabolic cylindrical function and the approximate expression of Gao Si Q function and the moment generating function (MGF), the radio communication system is designed by using the maximum ratio of TASPN / receiving antenna combined with MRC. The exact expressions of the mean symbol error rate of M-ary orthogonal and biorthogonal signals using TASP/MRC antenna diversity in Rayleigh block fading channels and the approximate expressions of ASER for orthogonal signals are derived respectively. Numerical calculation and simulation are performed. The results verify the correctness of the orthogonal / biorthogonal ASER exact expression using TASP/MRC and coherent detection, and the accuracy of the ASER approximate expression of orthogonal signal. The M-ary orthogonal / biorthogonal signal ASER is accurate or approximate. It can be used in the design of TASP/MRC antenna diversity system with coherent detection M-ary orthogonal and biorthogonal signals. The parameters such as the number of antennas and the series of channel predictors can be determined quickly and the time consuming computer simulation can be avoided.
【作者单位】：杭州电子科技大学;
【基金】：浙江省自然科学基金资助项目(No.LY12F01008)~~
【分类号】：TN911

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