Title :
The Application of High-Rate LDPC Codes in Image Transmission over Wireless Channel
Author :
Yongqing, HUO ; Qicong, PENG ; Huaizong, SHAO
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
It has been proved that low-density parity-check (LDPC) codes is good codes and have good distance. They have near Shannon limit performance when decoded using an iterative probabilistic algorithm. Moreover, high-rate LDPC codes have high data rate and high spectral efficiency. So, in this paper, we explored three high-rate LDPC codes in image transmission over Rayleigh fading channel, the simulation results show that high rate LDPC codes can obtain high information speed and bandwidth efficiency, they also can achieve high reliability and excellent performance in image communication over wireless channels. We also found that the performance is more sensitive to code rate than to code length
Keywords :
Rayleigh channels; iterative decoding; parity check codes; probability; visual communication; LDPC codes; Rayleigh fading channel; Shannon limit performance; decoding; image communication; image transmission; iterative probabilistic algorithm; low-density parity-check codes; wireless channel; Bandwidth; Belief propagation; Fading; Image communication; Iterative algorithms; Iterative decoding; Parity check codes; Reed-Solomon codes; Wireless communication; Wireless sensor networks;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.284586
