高技术通讯（英文版）2008，Vol.14Issue(2)：141-146,6.
Low-complexity and fast convergent multiuser detections for impulse UWB systems
Low-complexity and fast convergent multiuser detections for impulse UWB systems
摘要
Abstract
To solve the problem that the conventional detections in DS-CDMA suffer from high complexity and poor robustness for the time-hopping pulse signals, the received pulse signals were remodeled, and a multipath-free detection scheme, which provides a simple approach to select samples of received signals, was introduced. By this scheme, the subsequent multiuser detection (MUD) would get rid of the mismatch due to the correlative multipath signal in IR-UWB. In addition, a computationally efficient recursive least squares (RLS) type algorithm based on least mean fourth (LMF) criterion is derived to suppress multi-access interference. The proposed multiuser detection algorithm performs well at low complexity, even in dense multipath environment.关键词
ultra-wideband/multiuser detection (MUD)/multipath interference (MPI)/least mean fourth (LMF)Key words
ultra-wideband/multiuser detection (MUD)/multipath interference (MPI)/least mean fourth (LMF)分类
信息技术与安全科学引用本文复制引用
Zheng Lin,Qiu Hongbing..Low-complexity and fast convergent multiuser detections for impulse UWB systems[J].高技术通讯（英文版）,2008,14(2):141-146,6.基金项目
Supported by the National Natural Science Foundation of China (No.60432040), and the Guangxi Key Laboratory Foundation (No.063006-5G). （No.60432040）
