To enable wireless Internet and other data services using mobile appliances, there is a critical need to support content-rich cellular data communication, including voice, text, image and video. However, mobile communication of multimedia content has several bottlenecks, including limited bandwidth of cellular networks, channel noise, and battery constraints of the appliances. This paper addresses the energy and bandwidth bottlenecks of image data communication. The paper presents an energy efficient, adaptive data codec for still images that can significantly minimize the energy required for wireless image communication, while meeting bandwidth constraints of the wireless network, the image quality, and latency constraints of the wireless service.
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