Title :
Variable-Length Constrained Sequence Codes
Author :
Steadman, A. ; Fair, Ivan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
We outline the construction of simple, high rate constrained sequence codes with variable-length source words and variable-length codewords based on the search of partial extension of a minimal set of codeword lengths. We present optimal word length mappings for a subset of constrained sequence codes, and provide examples of (d, k) and DC-free codes with few codewords and average code rates greater than 99% of capacity.
Keywords :
sequential codes; source coding; DC-free codes; average code rate; codeword lengths; high rate constrained sequence codes; partial extension; variable-length constrained sequence codes; Codes; Digital communication; Disk recording; Huffman coding; Codes; Huffman codes; digital communication; disk recording;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.120312.121420
