19 April 2000 Performance analysis of image transmission over wireless communication channels
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Abstract
The transmission of real-time images and video over wireless communication channels is still a challenge problem. Digital compressed images are sensitive to bit errors which are typical in wireless communications. Moreover, the bandwidth at the air interface is currently a limiting factor because the first and second generation of mobile phone standards mainly support voice communications. In this paper, we present our study of real-time image traffic over a radio link -- the aim of this research is for videophone applications. In this study, we use the Discrete Wavelet Transform (DWT) to compress images and a Code Division Multiple Access (CDMA) link to transfer images over wireless communication channels. The results of the experiment show that it is possible to transfer 4 QCIF images per second over a CD MA link with minor degradation in image quality. This study was investigated by the VLSI Signal, Image and Video Processing Research Laboratory at the University of California, San Diego (UCSD).
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Philip P. Dang, Benjamin L. Ochoa, Paul M. Chau, "Performance analysis of image transmission over wireless communication channels", Proc. SPIE 3974, Image and Video Communications and Processing 2000, (19 April 2000); doi: 10.1117/12.382929; https://doi.org/10.1117/12.382929
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