Chip-asynchronous version of welch bound: Gaussian pulse improves BER performance

Yutaka Jitsumatsu, Tohru Kohda

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

We give a quadratic form expression of the mean squared multiple-access interference (MAI) averaged over relative time delays for chip-asynchronous DS/CDMA systems. A lower bound on the mean squared MAI is referred to as chip-asynchronous version of Welch bound, which depends on chip pulse shapes. Real analysis tells us that a pair of rectangular and sine functions is one of Fourier transform and its inverse Fourier transform and vice versa. On the other hand, Gaussian pulses have the self-duality property. Gaussian chip pulses sacrifice inter-symbol interference, however, they give smaller mean squared MAI, as well as lower bit error rate, than the conventional Nyquist pulses.

本文言語英語
ホスト出版物のタイトルSequences and Their Applications, SETA 2006 - 4th International Conference, Proceedings
出版社Springer Verlag
ページ351-363
ページ数13
ISBN(印刷版)3540445234, 9783540445234
DOI
出版ステータス出版済み - 1 1 2006
イベント4th International Conference on Sequences and Their Applications, SETA 2006 - Beijing, 中国
継続期間: 9 24 20069 28 2006

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
4086 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他4th International Conference on Sequences and Their Applications, SETA 2006
国/地域中国
CityBeijing
Period9/24/069/28/06

All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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