Error Protection for Scalable Image Over 3G-IP Network  

作　　者：WANGGuijin LINXinggang 

机构地区：[1]DepartmentofElectronicEngineering,TsinghuaUniversity,Beijing100084,China

出　　处：《Chinese Journal of Electronics》2003年第4期630-635,共6页电子学报（英文版）

摘　　要：Digital media, like image and video, transmitred 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 of 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 presented to determine the protection levels of both the row and the column codes so as to minimize the expected end-to-end distortion. Simulation results show that our proposed approach is very efficient at a wide range of bits budget and under different channel conditions.

关 键 词：3G IP 无线网络 JPEG2000 实验仿真 错误保护 数字多媒体 第三代无线通信网络 

分 类 号：TN929.5[电子电信—通信与信息系统] TN911[电子电信—信息与通信工程]