Error protection for scalable image over 3G-IP network
Digital media, like image and video, over third-generation wireless networks is a challenging task because the wireless networks present not only packet loss, but also bit errors. To address this problem, this paper proposes a novel error protection scheme for scalable image over 3G-IP networks. Taking into consideration the scalable nature of the image data, error protection is provided by layered product channel codes to mitigate the effect of the packet loss and bit errors. Meanwhile, rate-distortion optimization is performed to determine the protection levels of both the row channel codes and the column codes so as to minimize the expected end-to-end distortion. Simulation results demonstrate the effectiveness of our proposed approach.