第3代移动通信系统中的多用户检测技术

Technology of Multi-User Detection in Third Generation Mobile Communication System

讨论了第 3代移动通信系统中的多用户检测技术 ;多用户检测 (MU D:Multi- User Detection)技术在传统检测技术的基础上 ,充分利用造成多址干扰 (MAI:Multiple Access Interference)的所有用户信号信息对单个用户的信号进行检测 ,从而具有优良的抗干扰性能。首先 ,给出了多用户检测性能界限 ;然后具体分析了两类多用户检测 ,给出了它们的实现框图 ,性能曲线 。

This paper discusses the multi user detector in the third generation mobile communication system. On the basis of conventional detection, the multi user detection technology makes the most of information from multi access interference (MAI) to detect user's information, hence, this technology has a better anti jamming capability. The performance bound of multi user detector is presented and two kinds of multi user detectors are analyzed in detail, then their block diagrams, performance curves, advantages and disadvantages are also illustrated.