Open Access

A Class of High-Rate https://static-content.springer.com/image/art%3A10.1155%2FS1110865701000233/MediaObjects/13634_2000_Article_782_IEq1_HTML.gif Low-Complexity Error-Detecting RLL Codes

EURASIP Journal on Advances in Signal Processing20012001:690150

DOI: 10.1155/S1110865701000233

Received: 3 April 2000

Published: 2 October 2001

Abstract

We present a new methodology for the construction of high-rate channel modulation run-length-limited RLL https://static-content.springer.com/image/art%3A10.1155%2FS1110865701000233/MediaObjects/13634_2000_Article_782_IEq2_HTML.gif codes. Simple modulation encoders and decoders are constructed, with low error propagation during decoding. They combine partial error detection capability (PED) to boost the performance of a concatenated outer Error Correction Code (ECC) [1]. Moreover, current systems are using low redundancy ECC, and the overall rate is mainly determined by the inner modulation code rate, which critically is to be maintained high. Code rates https://static-content.springer.com/image/art%3A10.1155%2FS1110865701000233/MediaObjects/13634_2000_Article_782_IEq3_HTML.gif , for example, 16/17, 24/25 and higher are achievable, with efficiency exceeding 0.94 and 0.96, respectively. The proposed fixed length block decodable codes, are generalized schemes of the type https://static-content.springer.com/image/art%3A10.1155%2FS1110865701000233/MediaObjects/13634_2000_Article_782_IEq4_HTML.gif for https://static-content.springer.com/image/art%3A10.1155%2FS1110865701000233/MediaObjects/13634_2000_Article_782_IEq5_HTML.gif .

Keywords

run-length-limited constrained codes

Authors’ Affiliations

(1)
Texas Instruments, Inc.
(2)
Agere Systems

Copyright

© Bessios 2001