- Title
- Constraining LDPC degree distributions for improved error floor performance
- Creator
- Johnson, Sarah J.; Weller, Steven R.
- Relation
- IEEE Communications Letters Vol. 10, Issue 2, p. 103-105
- Publisher Link
- http://dx.doi.org/10.1109/LCOMM.2006.02001.
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2006
- Description
- The error floor performance of finite-length irregular low-density parity-check (LDPC) codes can be very poor if code degree distributions are chosen to optimize the threshold performance. In this paper we show that by constraining the optimization process, a balance between threshold and error floor' performance can be obtained. The resulting degree distributions give the best threshold performance subject to some minimum requirement on the error floor.
- Subject
- low-density parity-check codes; error floor; density evolution; code degree distribution; constrained degree distribution
- Identifier
- http://hdl.handle.net/1959.13/26923
- Identifier
- uon:1223
- Identifier
- ISSN:1089-7798
- Rights
- Copyright © 2006 IEEE. Reprinted from IEEE Communications Letters, Vol. 10, Issue 2, p. 103-105. 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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