Yodai WATANABE


A Novel Construction of Tree-Structured Zero-Correlation Zone Sequence Sets
Takafumi HAYASHI Yodai WATANABE Takao MAEDA Shinya MATSUFUJI 
Publication:   
Publication Date: 2017/10/01
Vol. E100-A  No. 10  pp. 2187-2194
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
zero-correlation zoneternary sequencebinary treeinter-subset zero-correlation zone
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A Novel Class of Quadriphase Zero-Correlation Zone Sequence Sets
Takafumi HAYASHI Yodai WATANABE Toshiaki MIYAZAKI Anh PHAM Takao MAEDA Shinya MATSUFUJI 
Publication:   
Publication Date: 2017/04/01
Vol. E100-A  No. 4  pp. 953-960
Type of Manuscript:  Special Section LETTER (Special Section on Signal Design and Its Applications in Communications)
Category: Sequences
Keyword: 
optimal zero-correlation zonequadriphaseQS-CDMAAS-CDMA
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A Novel Class of Zero-Correlation Zone Sequence Set Having a Low Peak-Factor and a Flat Power Spectrum
Takafumi HAYASHI Yodai WATANABE Anh T. PHAM Toshiaki MIYAZAKI Shinya MATSUFUJI Takao MAEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/12/01
Vol. E98-A  No. 12  pp. 2429-2438
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Sequence
Keyword: 
optimal zero-correlation zonelow peak-factorpseudo-white noiseperfect sequence
 Summary | Full Text:PDF(1.6MB)

Parameterization of High-Dimensional Perfect Sequences over a Composition Algebra over R
Takao MAEDA Yodai WATANABE Takafumi HAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/12/01
Vol. E98-A  No. 12  pp. 2439-2445
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Sequence
Keyword: 
correlation functionperfect sequencehigh-dimensional sequenceparameterizationFourier transformconvolution
 Summary | Full Text:PDF(537.1KB)