一种基于隐训练序列的DS-UWB多用户检测算法研究  

Research of Multi-User Detection Using Hidden Training Sequence for DS-UWB System

作　　者：胡莉[1] 张力伟 

机构地区：[1]西安电子科技大学通信工程学院,陕西710071 [2]中国移动通信集团河北有限公司,河北050001

出　　处：《网络安全技术与应用》2013年第1期61-64,共4页Network Security Technology & Application

摘　　要：多用户检测技术目的是在传统检测技术的基础上,充分利用造成多址干扰的所有用户信号信息对多用户做联合检测,以有效地消除多址干扰和远近效应问题。基于隐训练序列的最小均方误差(MMSE)多用户检测算法是在基于完全训练序列的MMSE多用户检测算法基础上,通过对算法进行改进,将训练序列嵌入到用户信息序列中发送。该检测算法提高了频谱资源的利用率,仿真结果表明其性能接近于完全训练序列的MMSE多用户检测算法,并且算法复杂度较低,适于工程应用。The multiuser detection algorithm is on the basic of the traditional detection technology, and fully makes use of all users＇ information to eliminate the MAI and Near-Far effects. Based on the algorithm of the minimum mean-square error multiuser detection based on the training sequences, the improved algorithm of multiuser detection based on the hidden training sequence uses a fraction of the informative sequence＇s transmitting power as training information. The algorithm can increase the bandwidth efficiency, and the simulation results show its performance is closed to the MMSE algorithm of multiuser detection based on the training sequence. The improved algorithm of multiuser detection based on the hidden training sequence is of low complexity and is suitable for engineering application.

关 键 词：多用户检测 MMSE 训练序列 

分 类 号：TN925[电子电信—通信与信息系统]