正交判决反馈多级多用户检测器性能分析  

The Orthogonal Decision Feedback Multistage Multiuser Detection Scheme and Its Performance Study

作　　者：郑巍[1] 谈振辉[1] 

机构地区：[1]北方交通大学通信与控制工程系

出　　处：《铁道学报》1999年第4期41-43,共3页Journal of the China Railway Society

摘　　要：ＣＤＭＡ系统中多用户检测方案的设计朝着低复杂度和高性能的方向发展。正交判决反馈检测器比解相关反馈检测器的复杂度低，且性能相当。本文将正交判决反馈检测器（ＯＤＦＤ）与多级干扰抵消器相结合，得到一个具有较高性能且复杂度较低的多用户检测方案，并对其性能进行了分析。The low complexity and high performance is the trend in the device of multiuser detection schemes in CDMA system. The performance of the orthogonal decision feedback detector(ODFD) is almost the same as that of the decorrelating decision feedback detector(DDFD) but with a much reduced complexity. So a new high performance scheme is proposed by applying the ODFD to the multistage interference canceller. And in this paper the new performance is studied.

关 键 词：多用户检测 CDMA系统 ODFD 移动通信 

分 类 号：TN929.5[电子电信—通信与信息系统] TN911.23[电子电信—信息与通信工程]