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Paper Abstract and Keywords
Presentation 2008-04-23 11:30
A Study on Reliability and Performance of FPGA-Based Fault Tolerant Systems
Ryoji Noji, Satoshi Fujie, Yuki Yoshikawa, Hideyuki Ichihara, Tomoo Inoue (Hiroshima City Univ.) CPSY2008-4 DC2008-4
Abstract (in Japanese) (See Japanese page) 
(in English) FPGAs (Field-Programmable Gate Arrays), which can implement arbitrary logic circuits
any number of times by loading context data, are also applicable to implementation of
fault tolerant (FT) systems due to their reconfigurability.
Several previous works have discussed FPGA based FT systems
such that a system is implemented with multiple blocks on an FPGA, and when detecting
an error, the FPGA isolates the faulty block and reconfigures the system with the same function
on the remaining fault-free blocks.
Such FT systems can be classified according to recovering methods:
fail-soft and stand-by-redundant systems.
In this paper, focusing on these two types of systems, we propose a probabilistic model for evaluating
both fail-soft systems and stand-by-redundant systems, and analyze their reliability and performance.
The analytical results show that we can choose an appropriate system from these two types
of FT systems according to required application.
Keyword (in Japanese) (See Japanese page) 
(in English) Fault-tolerance / FPGAs / fail-soft / stand-by-redundancy / reliability / performance / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 15, DC2008-4, pp. 19-24, April 2008.
Paper # DC2008-4 
Date of Issue 2008-04-16 (CPSY, DC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CPSY2008-4 DC2008-4

Conference Information
Committee DC CPSY  
Conference Date 2008-04-23 - 2008-04-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Dependable Computing Systems, etc. 
Paper Information
Registration To DC 
Conference Code 2008-04-DC-CPSY 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Reliability and Performance of FPGA-Based Fault Tolerant Systems 
Sub Title (in English)  
Keyword(1) Fault-tolerance  
Keyword(2) FPGAs  
Keyword(3) fail-soft  
Keyword(4) stand-by-redundancy  
Keyword(5) reliability  
Keyword(6) performance  
1st Author's Name Ryoji Noji  
1st Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
2nd Author's Name Satoshi Fujie  
2nd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
3rd Author's Name Yuki Yoshikawa  
3rd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
4th Author's Name Hideyuki Ichihara  
4th Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
5th Author's Name Tomoo Inoue  
5th Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
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Speaker Author-1 
Date Time 2008-04-23 11:30:00 
Presentation Time 30 minutes 
Registration for DC 
Paper # CPSY2008-4, DC2008-4 
Volume (vol) vol.108 
Number (no) no.14(CPSY), no.15(DC) 
Page pp.19-24 
Date of Issue 2008-04-16 (CPSY, DC) 

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