Cart (Loading....) | Create Account
Close category search window
 

A parallel implementation of the message-passing decoder of LDPC codes using a reconfigurable optical model

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Babvey, S. ; Dept. of Comput. Sci., Georgia State Univ., Atlanta, GA, USA ; Bourgeois, A.G. ; Fernandez-Zepeda, J.A. ; McLaughlin, S.W.

In this paper we propose a constant-time algorithm for parallel implementation of the message-passing decoder of low density parity check (LDPC) codes on the linear array with a reconfigurable pipelined bus system (LARPBS), achieving the minimum number of processors required for a fully parallel implementation. Dynamic reconfiguration provides flexibility to code changes and efficient message routing. To decode a different code, we may simply set up the required connections between the bit-nodes and check-nodes by modifying the initialization phase of the LARPBS algorithm. No extra wiring or hardware changes are required, as compared to other existing approaches. Moreover, the same hardware can implement the decoder in both probability and logarithm domains. The LARPBS also allows reducing the number of the bus cycles required for processor communications to a small constant, regardless of the code length. We illustrate that the LARPBS is an efficient and fast model for implementing the decoder.

Published in:

Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, 2005 and First ACIS International Workshop on Self-Assembling Wireless Networks. SNPD/SAWN 2005. Sixth International Conference on

Date of Conference:

23-25 May 2005

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.