Title :
The application of LDPC codes in image transmission
Author :
Yuling Zhan ; Dongfeng Yuan ; Haigang Zhang ; Haixia Zhang
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
In this paper, we combine the adaptive modulation and coding (AMC) with LDPC (low-density parity-check) codes and apply it to image transmission under Rayleigh fading channels. The transmitter adjusts the modulation mode according to the channel state information. Through computer simulation, we get the performance of our adaptive LDPC scheme in image transmission under certain demand of BER, and we also study the impacts of channel estimation error. We can see that in image transmission, our adaptive LDPC scheme can provide an acceptable image quality, meanwhile a higher spectral efficiency.
Keywords :
Rayleigh channels; channel estimation; error statistics; image coding; parity check codes; visual communication; BER; LDPC codes; Rayleigh fading channels; adaptive LDPC scheme; adaptive modulation and coding; channel estimation error; channel state information; computer simulation; image quality; image transmission; low-density parity-check codes; spectral efficiency; transmitter modulation mode; Application software; Bit error rate; Channel state information; Computer simulation; Fading; Image coding; Image communication; Modulation coding; Parity check codes; Transmitters;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1345933
