Boost the Performance of MBOK DS-UWB with Decision Feedback ISI Cancellation

摘要：

M-ary bi-orthogonal keying direct sequence UWB (MBOK DS-UWB) systems have been considered a type of PHY suitable for future high-speed wireless personal area networks (WPANs). In multipath fading channels, high speed signals will suffer from serious intersymbol interference (ISI) and interpulse interference (IPI) phenomena which degrade the performance and cause “error floor. In this paper, we propose a decision feedback (DF) based scheme to achieve successive ISI cancellation (SIC). The proposed DF-SIC scheme can be used jointly with fractionally spaced (FS) Rake receivers. Performance is verified with simulations over the UWB single-user link with data rates of 110 Mbps and 220Mbps. Numerical results show that the hybrid of DF-SIC and FS Rake can effectively boost the BER performance of MBOK DS-UWB in typical UWB channels.

关键词： decision feedback SIC MBOK DS-UWB

作者: Guodong Ding Deqiang Wang Zhe Chen

作者单位: School of Information Science and Engineering,Shandong University,Jinan,Shandong,China

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）