Presentation 2009-12-08
A Study on Interference Suppression Scheme based on multiple symbol periods for UWB MB-OFDM Systems
Atsushi MINAKAWA, Masahiro FUJII, Yu WATANABE,
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Abstract(in English) Ultra-WideBand(UWB)systems have recently gained popularity for short range high rate communications. UWB system may cause serious interference to the other wireless communication systems whose spectra overlap the UWB band because it makes use of huge bandwidth. Therefore, we have to get to Detect-And-Avoid(DAA)technologies which detect the other systems and control the transmit energy of the UWB devices not to interfere with the other systems. In this paper, we propose a new scheme to suppress interference in the other systems using weighting factors based on multiple symbol periods for UWB Multi-Band Orthogonal Frequency Division Multiplexing(MB-OFDM)systems. Our proposed method can effectively suppress the emission energy in interference band using several frequency carriers out of available carriers with a slight degradation of transmission efficiency. By computer simulations, we show performances of the proposed scheme in comparison with conventional schemes.
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Keyword(in English) DAA / MB-OFDM / interference energy
Paper # WBS2009-41
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Committee WBS
Conference Date 2009/12/1(1days)
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Registration To Wideband System(WBS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Interference Suppression Scheme based on multiple symbol periods for UWB MB-OFDM Systems
Sub Title (in English)
Keyword(1) DAA
Keyword(2) MB-OFDM
Keyword(3) interference energy
1st Author's Name Atsushi MINAKAWA
1st Author's Affiliation Graduate School of Engineering, Utsunomiya University()
2nd Author's Name Masahiro FUJII
2nd Author's Affiliation Graduate School of Engineering, Utsunomiya University
3rd Author's Name Yu WATANABE
3rd Author's Affiliation Graduate School of Engineering, Utsunomiya University
Date 2009-12-08
Paper # WBS2009-41
Volume (vol) vol.109
Number (no) 324
Page pp.pp.-
#Pages 6
Date of Issue