Interference Suppression in DS-PPM UWB Systems

被引：2
|
作者：
Thiasiriphet, Thanawat [1 ]
Zhan, Rui [1 ]
Lindner, Juergen [1 ]
机构：
[1] Univ Ulm, Inst Informat Technol, D-89031 Ulm, Germany
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND (ICUWB 2009) | 2009年
关键词：
D O I：
10.1109/ICUWB.2009.5288760
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper we consider a multiuser DS-PPM UWB transmission system with comb filter based energy detection and its improvement for the case of interchip and interuser interference. DS-PPM UWB provides good performance in WBAN environments under the assumption that the channel dispersion is shorter than one chip period. The performance could be highly degraded if this assumption is violated. To cope with the problem, a novel DS-PPM scheme - called DDS-PPM - is proposed in this paper. Optimal spreading sequence requirements are derived, which guarantee a suppression of the interference. It is shown that zero correlation zone sequences can be used to fulfill these requirements. Simulations with a WBAN channel show the excellent performance of the new scheme.
引用
收藏
页码：718 / 722
页数：5
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