摘要
利用多用户检测技术可以抑制多址干扰,从而提高CDMA系统的容量和性能。研究了CDMA系统中的多用户检测技术的原理和作用,并对连续干扰消除多用户检测器消除干扰的原理和过程进行了详细的阐述;综合考虑各种影响因素,推导出了CDMA系统容量的公式,最后利用仿真,直观地分析了多用户检测对系统容量的影响。
Multi - user detection technique can cancel multi - access interference, so it can enhance the capacity and performance of CDMA system. This paper studies the principle of multi - detection technique in CDMA system; and then considerating all the influencing factors comprehensively, the system capacity formula is deducted concretely. At last, the influence of multi - user detection to CDMA system capacity is analyzed visually by the simulation.
出处
《信息技术》
2006年第11期63-66,70,共5页
Information Technology
关键词
CDMA
多用户检测
多址干扰
连续干扰消除
系统容量
CDMA
multi - user detection
multi - access interference
successive interference cancellation
system capacity
