Multipath-free Detector for Multiuser Impulse UWB Systems with Recursive Least Squares LMF Algorithm

摘要：

Multiple access and multipath fading present major challenges for UWB in terms of both technological capability and implementation complexity. In this paper, we develop a multipath-free scheme, which provides a simple approach to select samples of received signals. By this scheme, the subsequent multiuser detection (MUD) would escape from the mismatch due to the correlative multipath signal in impulse ultra-wideband (IR-UWB) multiuser systems. In addition, a computationally efficient recursive least squares (RLS) type algorithm based on least mean fourth (LMF) criterion is derived to suppress multiaccess interference. The proposed multiuser receiver exhibits good performance at low complexity, even in dense multipath environment.

作者: Lin Zheng Shan Ouyang

作者单位: School of Telecommunications Engineering, Xidian University, Xian, China, 710071;Depart. of Commun. Depart. of Commun. & Information Eng. , Guilin University of Electronic Technology, Guilin, China, 5

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 1292-1296

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）