等重码构建的多脉冲位置调制UWB通信系统  

Multi-Pulse Position Modulation for TH-UWB Communication System Using Constant Weight Code

作　　者：王野秋[1] 吕英华[1] 张洪欣[1] 张金玲[1] 刘宁[1] 

机构地区：[1]北京邮电大学通信网络综合技术研究所

出　　处：《电子科技大学学报》2008年第5期673-676,692,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(60331010、60671055);教育部光通信和光波技术重点实验室(北京邮电大学)开放基金

摘　　要：在已有的单脉冲位置调制的基础上,利用等重码构建了一种多脉冲位置调制的UWB跳时调制方案;并对其AWGN下的信道容量、误码率等性能指标进行了理论分析。数值结果表明,在满足一定的条件下,MPPM能以较低的接收机复杂度在数据容量、误码率等指标上获得比相应的脉冲位置调制及脉冲幅度调制更高的性能,可以作为UWB高速通信应用的一个很好的备选调制方案。Ultra-wideband （UWB） which is very suitable for short range and high data-rate wireless application has received much attention from the researchers all over the world, and the UWB modulation scheme is one of the research emphases. In this paper, a new time-hopping UWB modulation method called multi-pulse position modulation （MPPM） constructed by constant weight code （CWC） is proposed. The MPPM is based on the existing single pulse position modulation （SPPM） and employs more than one pulse in a symbol. The channel capacity and error probability of MPPM are derived over an AWGN channel respectively. Theory analysis and simulation results show that MPPM can get better communication performance than single pulse position modulation and pulse amplitude modulation （PAM） with lower receiver complexity under some given condition.

关 键 词：等重码 多脉冲位置调制 脉冲位置调制 超宽带 

分 类 号：TN914.2[电子电信—通信与信息系统]