多址干扰对消及多用户检测技术在CDMA系统中的作用

CDMA系统具有一系列的优点,这些优点使得CDMA技术在移动通信领域中所处的地位越来越重要.但在CDMA已经成为第三代移动通信主流技术的时候,还有许多关键技术要解决,其中最关键的就是要克服CDMA系统中多址干扰（MAI）的技术.本文介绍了多址干扰在CDMA系统中的成因,由此重点阐述了多址干扰对消及多用户检测技术在CDMA系统中的应用,并对他们的性能、局限性和应用环境做了分析和比较.

Multi-access Interference Cancellation and Multi-users Detection Method in CDMA Systems

CDMA has many advantages, Just because of these advantages,CDMA technology plays more and more important roles in mobile telecommunication field. But there are still many problems that need to be solve ,of which the most important thing is to suppress MAI. This paper introduces cause of formation of multi-access interference in CDMA systems,and mostly researching the apply of multi-access interference cancellation and multi -users detection method in CDMA systems,the capability,localization and apply environment of multi -access interference cancellation and multi-users detection method are analyzed and compared.