Title :
An adaptive UEP transmission system for JPEG2000 codestream using RCPT codes
Author :
Liu, Weiliang ; Daut, David G.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey State Univ., Piscataway, NJ, USA
Abstract :
An efficient adaptive unequal error protection technique is proposed for JPEG2000 codestream transmission over AWGN channels using RCPT codes. Image headers are protected by hybrid FEC/ARQ methods to realize near error-free performance. Quality-layer data packets are protected by a set of RCPT codes based on a rate-distortion methodology. A time-varying channel is adapted for image transmission using a channel operating region segmentation scheme. A sub-optimum rate selection procedure avoids the complicated dynamic programming computation. Simulation results show that separate considerations for header and data packets are necessary when channels are noisy. Reconstructed images data has been obtained to show the effectiveness of the proposed practical rate selection scheme.
Keywords :
AWGN channels; adaptive codes; automatic repeat request; combined source-channel coding; dynamic programming; forward error correction; image coding; image reconstruction; image segmentation; mobile radio; time-varying channels; turbo codes; visual communication; ARQ methods; AWGN channels; FEC; JPEG2000 codestream transmission; adaptive unequal error protection technique; channel operating region segmentation scheme; dynamic programming computation; error-free performance; image headers; image reconstruction; image transmission; mobile devices; quality-layer data packets; rate compatible punctured turbo codes; rate selection scheme; rate-distortion methodology; sub-optimum rate selection procedure; time-varying channel; AWGN channels; Adaptive systems; Automatic repeat request; Dynamic programming; Error correction codes; Forward error correction; Image communication; Image segmentation; Rate-distortion; Time-varying channels;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399571
