在码分多址系统中,求解多用户检测问题是重要环节,介绍了多用户检测问题的应用背景和发展 现状,重点综述基于半定规划模型寻求多用户检测问题次优解的几种重要方法,包括随机扰动法、 坐标下降法、半定规划的割平面法和二次规划的分枝定界法等。结合数值实验,评析比较了这些 方法的优缺点-Quasi-Maximum-Likelihood Multiuser Detection Using Semi-Definite Relaxation With Application to Synchro

DS-spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较-DS-spread spectrum system, the noise is additive white Gaussian noise, the traditional single-user detection, the linear decorrelating multiuser detection and MMSE Multiuser Detecti

Introduce the Multiuser Detection (MUD) for DS-CDMA system 􀂄 Give two MUD methods for DS-CDMA system –Decorrelating MUD –Subspace MMSE MUD 􀂄 Compare them with traditional decorrelating detection 􀂄 Study the BER vs. S

cdma系统多用户检测仿真simulink模型的建立与模型研究-research on simulation model of cdma system multiuser dection