- Title
- Constructions for irregular repeat-accumulate codes
- Creator
- Johnson, Sarah J.; Weller, Steven R.
- Relation
- International Symposium on Information Theory, 2005 (ISIT 2005). Proceedings of the International Symposium on Information Theory, 2005 (ISIT 2005) (Adelaide, S.A. 4-9 September, 2005) p. 179-183
- Publisher Link
- http://dx.doi.org/10.1109/ISIT.2005.1523318
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2005
- Description
- Recent promising theoretical results for irregular repeat-accumulate (IRA) codes, together with their extremely simple encoding, motivates this investigation into the design and implementation of finite-length IRA codes. In this paper interleavers for RA codes are designed using combinatorial techniques to produce RA codes with Tanner graphs suitable for sum-product decoding. Further, a modified RA code accumulator is used to construct new IRA codes with columns of weight 3 in the accumulator. These new codes, called w3IRA codes, can be designed with flexible degree distributions and retain the simple encoding of traditional IRA codes.
- Subject
- encoding; finite-length IRA codes; interleaved codes
- Identifier
- http://hdl.handle.net/1959.13/30869
- Identifier
- uon:2723
- Identifier
- ISBN:0780391519
- Rights
- Copyright © 2005 IEEE. Reprinted from Proceedings of the International Symposium on Information Theory 2005 (ISIT 2005), p. 179-183. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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