19 April 2000 Performance analysis of image transmission over wireless communication channels
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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, Philip P. Dang, Benjamin L. Ochoa, Benjamin L. Ochoa, Paul M. Chau, 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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