Presentation 2017-03-09
Multiuser Performance Evaluation on Square-law Detection DS-UWB-IR using Modified Pseudo-orthogonal M-sequence
Takuma Matsumura, Hiromasa Habuchi,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) DS-UWB-IR systems, which combines the direct sequence/spread-spectrun techniques with the ultra wideband-impulse radio technniques, are investigated. For the simplification of the receiver, the on-off keying systems with a square-law detector are evaluated. However, in these systems, error rate performance greatly deteriorates by other users signals. To solve this problem, the energy weighted DS-UWB-IR using the modified pseudo orthogonal M-sequence and the square-low detection was propoased. In this paper, the multiuser capability of the proposed system is evaluated under the synchronization between users. Moreover, the relation between bit error rate performance and variance of synchronization error is revealed. Consequently, it is found that the bit error rate decreases until the number of users becomes a half of the length of the modified pseudo orthogonal M-sequence.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ultra Wide Band / Direct Sequence/Spread Spectrum / Modified Pseudo-orthogonal M-sequence / Square-law Detection / Interference Characteristic
Paper # IT2016-114,ISEC2016-104,WBS2016-90
Date of Issue 2017-03-02 (IT, ISEC, WBS)

Conference Information
Committee ISEC / WBS / IT
Conference Date 2017/3/9(2days)
Place (in Japanese) (See Japanese page)
Place (in English) TOKAI University
Topics (in Japanese) (See Japanese page)
Topics (in English) joint meeting of IT, ISEC, and WBS
Chair Masahiro Mambo(Kanazawa Univ.) / Fumiaki Maehara(Waseda Univ.) / Masayoshi Ohashi(Fukuoka Univ.)
Vice Chair Kazuto Ogawa(NHK) / Atsushi Fujioka(Kanagawa Univ.) / Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Jun Muramatsu(NTT)
Secretary Kazuto Ogawa(Toshiba) / Atsushi Fujioka(Tohoku Univ.) / Masanori Hamamura(Tokyo City Univ.) / Fumie Ono(Mitsubishi Electric) / Jun Muramatsu(Wakayama Univ.)
Assistant Toshihiro Ohigashi(Tokai Univ.) / Yuuji Suga(IIJ) / Atsuo Inomata(Tokyo Denki Univ.) / Yusuke Kozawa(Tokyo Univ. of Science) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) / Mitsugu Iwamoto(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Information Security / Technical Committee on Wideband System / Technical Committee on Information Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Multiuser Performance Evaluation on Square-law Detection DS-UWB-IR using Modified Pseudo-orthogonal M-sequence
Sub Title (in English)
Keyword(1) Ultra Wide Band
Keyword(2) Direct Sequence/Spread Spectrum
Keyword(3) Modified Pseudo-orthogonal M-sequence
Keyword(4) Square-law Detection
Keyword(5)
Keyword(6) Interference Characteristic
1st Author's Name Takuma Matsumura
1st Author's Affiliation Ibaraki University(Ibaraki Univ.)
2nd Author's Name Hiromasa Habuchi
2nd Author's Affiliation Ibaraki University(Ibaraki Univ.)
Date 2017-03-09
Paper # IT2016-114,ISEC2016-104,WBS2016-90
Volume (vol) vol.116
Number (no) IT-504,ISEC-505,WBS-506
Page pp.pp.97-102(IT), pp.97-102(ISEC), pp.97-102(WBS),
#Pages 6
Date of Issue 2017-03-02 (IT, ISEC, WBS)