Toshihiko OKAMURA


Hardware-Trojans Rank: Quantitative Evaluation of Security Threats at Gate-Level Netlists by Pattern Matching
Masaru OYA Noritaka YAMASHITA Toshihiko OKAMURA Yukiyasu TSUNOO Masao YANAGISAWA Nozomu TOGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/12/01
Vol. E99-A  No. 12  pp. 2335-2347
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
hardware Trojansgate-level netlista quantitative criterionpattern matchingdesign phase
 Summary | Full Text:PDF(1.8MB)

A Hardware-Trojans Identifying Method Based on Trojan Net Scoring at Gate-Level Netlists
Masaru OYA Youhua SHI Noritaka YAMASHITA Toshihiko OKAMURA Yukiyasu TSUNOO Satoshi GOTO Masao YANAGISAWA Nozomu TOGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/12/01
Vol. E98-A  No. 12  pp. 2537-2546
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis, Test and Verification
Keyword: 
hardware Trojansgolden-IC freeclassificationidentificationgate-level netlist
 Summary | Full Text:PDF(2.3MB)

A Hybrid ARQ Scheme Based on Rate-Compatible Low-Density Parity-Check Codes by Shortening and Extending
Toshihiko OKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2883-2890
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
low-density parity-check codehybrid ARQshortened code
 Summary | Full Text:PDF(518.6KB)

On the Construction of Quasi-Cyclic Low-Density Parity-Check Codes Based on Girth
Toshihiko OKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/09/01
Vol. E87-A  No. 9  pp. 2432-2439
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
low-density parity-check codequasi-cyclic codeTanner graphgirtharray codeirregular code
 Summary | Full Text:PDF(254.8KB)

Principles of Turbo Codes and Their Application to Mobile Communications
Akihisa USHIROKAWA Toshihiko OKAMURA Norifumi KAMIYA Branka VUCETIC 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/07/25
Vol. E81-A  No. 7  pp. 1320-1329
Type of Manuscript:  INVITED PAPER (Special Section on Fundamentals of Multi-dimensional Mobile Information Network)
Category: 
Keyword: 
Turbo codesiterative decodingMAPSOVAmobile communication
 Summary | Full Text:PDF(864.6KB)