摘要
研究了多用户检测技术在宽带 CD-MA系统中的应用。比较系统地介绍了最佳多用户检测和次最佳多用户检测接收机的原理 ,对多级串行和并行干扰抵消算法进行了仿真 ,并给出了结论 :从复杂度和误码性能两方面综合考虑 ,干扰抵消接收机的抵消级数选为 3级时 ,接收机的性能最优。
This paper studies the application of multi user detection technique in wideband CDMA system. It introduces principles of optimum and sub optimum multi user detection receivers systematically. And then it simulates the algorithms of multi stage serial and parallel interference cancellation, at last, considering complexity and BER performance, it gives the result that the performance of the receiver is optimum while the stage of the interference cancellation receiver is No.3.
出处
《电子工程师》
2000年第11期19-21,共3页
Electronic Engineer
关键词
多用户检测
宽带CDMA
移动通信
multi user detection, multi access interference, wideband CDMA, optimum detection