원문정보
초록
영어
This paper presents an architecture of Multiband Impulse Radio UWB (MB-IR-UWB) system based on Prolate Spheroidal Wave Function (PSWF) by binary time hopping pulse position modulation (TH-PPM) over multipath fading channel. In order to combat multipath fading, Rake receiver using maximal ratio combining (MRC) is applied to this system, which can successfully capture the unique multipath-rich property and multipath-clustering phenomenon of UWB channels. Through simulation, a comparison of system performance between different types of Rake receiver is analyzed. What’s more, considered multipath delay spread, a data rate estimation of the communicating system is given. Finally we get the conclusion that increasing data rate is best-achieved by increasing the number of subband instead of decreasing the symbol repetition period.
목차
1. Introduction
2. MB-IR-UWB System Overview
3. Channel model and Rake receiver
3.1 Channel model
3.2 Channel model
3.3 MB-IR-UWB system signal model
4. Simulations and Performance Analysis
4.1 Performance analysis with Rake receiver in multipath channel
4.2 Analysis of MB-IR-UWB data rate in multipath channel
5. Conclusions
Acknowledgements
References