Presentation 2015-06-26
Channel Sounders for Underwater Acoustic Communications Employing Acoustic Electronic Equipments
Shunichi Ueda, Dai Aizawa, Takashi Shimizu, Takahide Ichikawa, Hiroshi Kubo,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper discusses channel sounders for underwater acoustic communications (UWAC), which estimate channel impulse response (CIR), using commercial electric acoustic equipment. Although transmission channel models are inevitable in performance evaluation of wireless communications, there are a few reports on channel models for UWAC. In order to obtain channel models for acoustic communications, channel sounders play important roles. Thus, if channel sounders can be realized by commercial electric acoustic equipment, it is easy to sound CIR of UWAC. The features of the proposed acoustic channel sounders are as follows: 1) frequency distortion due to commercial electric acoustic equipment is compensated by pre-coding; 2) frequency deviation between transmit and receive functions are compensated by re-samplers; 3) side-lobes due to correlation of M sequence, which is used to estimate CIR, are cancelled by side-lobe cancellers with low computational complexity. Finally this paper evaluates performance of the proposed channel sounders for UWAC by hardware experimental results.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Underwater Acoustic Communications / Channel Sounders / Pre-Coding / Re-samplers / Side-lobe Canceller
Paper # RCS2015-81
Date of Issue 2015-06-17 (RCS)

Conference Information
Committee RCS
Conference Date 2015/6/24(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc.
Chair Makoto Taromaru(Fukuoka Univ.)
Vice Chair Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.)
Secretary Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada
Assistant Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.)

Paper Information
Registration To Technical Committee on Radio Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Channel Sounders for Underwater Acoustic Communications Employing Acoustic Electronic Equipments
Sub Title (in English)
Keyword(1) Underwater Acoustic Communications
Keyword(2) Channel Sounders
Keyword(3) Pre-Coding
Keyword(4) Re-samplers
Keyword(5) Side-lobe Canceller
1st Author's Name Shunichi Ueda
1st Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
2nd Author's Name Dai Aizawa
2nd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
3rd Author's Name Takashi Shimizu
3rd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
4th Author's Name Takahide Ichikawa
4th Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
5th Author's Name Hiroshi Kubo
5th Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
Date 2015-06-26
Paper # RCS2015-81
Volume (vol) vol.115
Number (no) RCS-113
Page pp.pp.205-210(RCS),
#Pages 6
Date of Issue 2015-06-17 (RCS)