Testing the Gaussianity of UWB TH-PPM MUI with Imperfect Power Control and Multipath

被引：0
|
作者：
Ramirez-Mireles, Fernando [1 ]
Almada, Angel [2 ]
机构：
[1] ITAM, Mexico City 01000, DF, Mexico
[2] Georgia Inst Technol, Atlanta, GA 30332 USA
来源：
2008 5TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING, COMPUTING SCIENCE AND AUTOMATIC CONTROL (CCE 2008) | 2008年
关键词：
D O I：
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中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We study the statistical nature of the multiuser interference (MUI) from pulse-based ultrawideband (UWB) signals with time-hopping (TH) and pulse position modulation (PPM). We determine the domain of validity for the Gaussian assumption for three different conditions: An ideal propagation channel with perfect and imperfect power control, as well as a multipath channel with "perfect average" power control. Results for imperfect power control suggest that the Gaussian approximation can be used if we consider a large enough number of active users N-u and/or number of pulses per symbol N-s, e.g., for low data rate systems with large number of users. Results for multipath suggest that in dense multipath environment a low number of N-u, and/or N-s, is enough to reach Gaussianity.
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页码：47 / +
页数：2
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