Channel code blocklength and rate optimization for progressive image transmission

Author

Sherwood, P. Greg ; Tian, Xiaodong ; Zeger, Kenneth

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

fYear

1999

fDate

1999

Firstpage

978

Abstract

We investigate the problem of selecting blocklength and code rate for progressive image transmission, motivated by turbo coding methods where the performance improves with blocklength. The problem is to balance the tradeoff among error protection, source coding rate, and delay. We propose a general performance measure for evaluating progressive transmission and use dynamic programming to determine the channel code parameters based on the progressive performance. Performance results are provided for the evaluation of the gains over less complex methods as a function of channel error rate

Keywords

channel coding; dynamic programming; image coding; optimisation; source coding; turbo codes; visual communication; blocklength selection; channel code blocklength; channel code parameters; channel error rate; code rate selection; delay; dynamic programming; error protection; performance measure; performance results; progressive image transmission; progressive performance; rate optimization; source coding rate; turbo coding methods; Channel coding; Decoding; Dynamic programming; Error probability; Image communication; Performance gain; Protection; Source coding; Turbo codes; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Conference_Location

New Orleans, LA

ISSN

1525-3511

Print_ISBN

0-7803-5668-3

Type

conf

DOI

10.1109/WCNC.1999.796817

Filename

796817