Adaptive LDPC in image transmission under Rayleigh fading channel

被引：0
|
作者：
Zhang, YL [1 ]
Yuan, DF [1 ]
Zhang, HG [1 ]
机构：
[1] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Shandong, Peoples R China
来源：
6TH INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY, VOLS 1 AND 2, PROCEEDINGS: BROADBAND CONVERGENCE NETWORK INFRASTRUCTURE | 2004年
关键词：
adaptive LDPC; image transmission; Rayleigh fading channel;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An adaptive coded modulation scheme based on LDPC (low-density parity-check) codes is proposed for image transmission under Rayleigh fading channels. The code rate is fixed to 1/2, and only the modulation mode is changed according to the channel state, that is, during poor channel conditions, BPSK modulation Is employed, as channel conditions improve, more efficient modulation scheme such as 8PSK is used. Through simulation, we get the performance of our adaptive LDPC scheme in image transmission under certain demand of BER, and the comparison between adaptive LDPC and nonadaptive LDPC in Image transmission is also given.
引用
收藏
页码：192 / 196
页数：5
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