Presentation 2004/2/27
Pre-Rake Performance for Pulse Based UWB System in a Standardized UWB Short-Range Channel
Kazuto USUDA, Honggang ZHANG, Masao NAKAGAWA,
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Abstract(in English) The Pre-Rake scheme ultra-wideband (UWB) communications system is proposed in a standardized UWB channel model from IEEE802.15 SG3a, which is based on an extensive set of indoor short-range channel measurements in this paper. The Pre-Rake scheme is shown to contribute to the low-power, cost-effective UWB system designing as well as Rake combining gain. Instead of building a Rake receiver in the receiving side (e.g. Portable Unit), the transmitter (e.g. Access Point) can pre-diversity the UWB signal before transmission in the forward link estimating the channel impulse response from the reverse link. While the pre-Raked signal is convolved with the estimated channel impulse response, the function of Rake combining at the receiver is automatically performed. Monte-Carlo simulations are carried out to compare the Pre-Rake with Rake. This result show that Pre-Rake scheme is as good as Rake combining. Then the mobile or portable unit with a conventional receiver can still achieve the diversity gain of Rake combining.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ultra-Widband / UWB / impulse radio / Rake / Pre-Rake / transmit diversity
Paper # WBS2003-165,A・P2003-358,RCS2003-381,MoMuC2003-171,MW2003-327
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Committee WBS
Conference Date 2004/2/27(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Pre-Rake Performance for Pulse Based UWB System in a Standardized UWB Short-Range Channel
Sub Title (in English)
Keyword(1) Ultra-Widband
Keyword(2) UWB
Keyword(3) impulse radio
Keyword(4) Rake
Keyword(5) Pre-Rake
Keyword(6) transmit diversity
1st Author's Name Kazuto USUDA
1st Author's Affiliation Dept. of Information and Computer Science, Keio University()
2nd Author's Name Honggang ZHANG
2nd Author's Affiliation Yokosuka Radio Communications Research Center. Communications Research Laboratory
3rd Author's Name Masao NAKAGAWA
3rd Author's Affiliation Dept. of Information and Computer Science, Keio University
Date 2004/2/27
Paper # WBS2003-165,A・P2003-358,RCS2003-381,MoMuC2003-171,MW2003-327
Volume (vol) vol.103
Number (no) 676
Page pp.pp.-
#Pages 6
Date of Issue