摘要
CDMA系统由于用户容量大、频谱利用率高等特点而优于其他多址方式,近年来在通信系统中得到越来越多的重视,如何克服多址干扰问题已成为提高CDMA系统容量的关键。而作为3G的关键技术之一的多用户检测技术,近年来取得了多个方面的发展。本文就TD-SCDMA系统的多用户检测技术(MUD)之一的最小均方误差(MMSE)技术进行了详细分析,并给出仿真结果。
CDMA system has the characteristics of great capability and high frequency efficiency , but the other multi-access communication systems don＇t .So in last several years ,the CDMA system is got more and more attentions .It is the key technology that how to solve the MAI problem .And MUD ,as one of the key technologies of the 3G system ,has achieved great developments . In this passage, we particularly analyze the MMSE, one of the MUD technologies, and give out the MATLAB emulation figures.
出处
《中国新通信》
2009年第9期9-12,共4页
China New Telecommunications
