Title :
Progressive image transmission by hybrid ARQ with code combining
Author :
Zhao, Minyi ; Akansu, Ali N.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
We present an optimization algorithm for the type-II hybrid automatic repeat request (HARQ) scheme for progressive image transmission in channels with feedback information. A general finite state Markov chain (FSMC) channel model is used to approximate the slow fading phenomenon encountered in the feedforward channels for wireless communications. It is shown that the code combining technique further improves the performance of type-I HARQ schemes by about 0.3 dB under the same channel conditions.
Keywords :
Markov processes; automatic repeat request; fading channels; feedback; feedforward; image coding; optimisation; visual communication; code combining; feedback information; feedforward channels; finite state Markov chain; general FSMC channel model; hybrid automatic repeat request; image coders; optimization; performance; progressive image transmission; slow fading; type-I HARQ schemes; type-II HARQ; wireless communications; Automatic repeat request; Concatenated codes; Cyclic redundancy check; Fading; Feedback; Forward error correction; Image communication; Image generation; Protection; Streaming media;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987031
