Title :
Research on unequal error protection with punctured convolutional codes in image transmission system over mobile channels
Author :
Yuan, Dong-Feng ; Li, Zuo-Wei ; Sui, Ai-Fen ; Ning, Ji-Ming
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
In this paper, the 4-state Markov model is presented as a long-burst error probability model of a mobile channel, and punctured convolutional codes (PCC) are applied to an image transmission system over mobile fast-fading channels. We propose a new scheme of unequal error protection (UEP) in image transmission by means of adjusting the different code rates, the constraint length of the mother code and interleaving degree. Simulation results show the superiority of UEP directly
Keywords :
Markov processes; convolutional codes; error statistics; fading channels; land mobile radio; video coding; 4-state Markov model; PCC; UEP; code rates; constraint length; image transmission system; interleaving degree; long-burst error probability model; mobile channels; mobile fast-fading channels; mother code; punctured convolutional codes; unequal error protection; Bandwidth; Convolutional codes; Data communication; Error correction codes; Image communication; Interference; Interleaved codes; Mobile communication; Protection; Testing;
Conference_Titel :
Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6596-8
DOI :
10.1109/WCNC.2000.904811
