A Channel Selective Approach to Wireless Image Transmission over Fading Channels

被引：2
|
作者：
Zhang, Hao [1 ]
Gulliver, Aaron [2 ]
机构：
[1] Ocean Univ China, Dept Elect Engn, Qingdao, Peoples R China
[2] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 2Y2, Canada
来源：
2009 IEEE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, VOLS 1 AND 2 | 2009年
关键词：
Cross layer design; Channel selection; Wireless image transmission; Fading channels;
D O I：
10.1109/PACRIM.2009.5291283
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, we propose a cross layer approach to wireless image transmission over fading channels. We first extract the key information from the image and transmit this information only when the channel is good to ensure that most errors occur in the less important image information. The relationship between the channel SNR and Peak SNR (PSNR) of the received image is examined. Performance results are given which show that the proposed approach can significantly improve transmitted image quality. For example, with SNR = 5dB and BPSK modulation in a Rayleigh flat fading channel, the PSNR of the received image with the proposed approach has a gain of 7dB over the previous solution. (1)
引用
收藏
页码：720 / 724
页数：5
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