Title :
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
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;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.796817
