M3FEC:Joint Multiple Description Coding and Forward Error Correction for Interactive Multimedia in Multiple Path Transmission  

作　　者：张辉 江伟 周晋 陈震 李军 

机构地区：[1]Department of Automation,Tsinghua University [2]Research Institute of Information Technology, Tsinghua University [3]Research Institute of Information Technology,Tsinghua University [4]Tsinghua National Laboratory for Information Science and Technology

出　　处：《Tsinghua Science and Technology》2011年第3期320-331,共12页清华大学学报（自然科学版（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.90718040);NEC Laboratories China (No.LC-2008-055)

摘　　要：The best-effort internet has inherent limitations on the end-to-end performance for interactive multimedia communications. This paper presents a multiple description coding （MDC） and forward error correction （FEC） based multiple path transmission schemes for interactive multimedia （M3FEC）, which improves the end users’ experience by maximizing a rate-distortion （R-D） based optimization problem. The proposed model considers both the network diversity and the application’s stringent requirements, and combines the individual merits of the three promising technologies of multiple path overlay routing, MDC and FEC. Extensive numerical analysis and PlanetLab experiments demonstrate that M3FEC successfully combats packet losses, error propagation, and unpredictable network dynamics. This method also significantly increases distortion for interactive multimedia by over 10 dB than traditional IP-layer single path transmission in poor network environments, and outperforms the performance achieved by using MDC or FEC alone.The best-effort internet has inherent limitations on the end-to-end performance for interactive multimedia communications. This paper presents a multiple description coding （MDC） and forward error correction （FEC） based multiple path transmission schemes for interactive multimedia （M3FEC）, which improves the end users’ experience by maximizing a rate-distortion （R-D） based optimization problem. The proposed model considers both the network diversity and the application’s stringent requirements, and combines the individual merits of the three promising technologies of multiple path overlay routing, MDC and FEC. Extensive numerical analysis and PlanetLab experiments demonstrate that M3FEC successfully combats packet losses, error propagation, and unpredictable network dynamics. This method also significantly increases distortion for interactive multimedia by over 10 dB than traditional IP-layer single path transmission in poor network environments, and outperforms the performance achieved by using MDC or FEC alone.

关 键 词：interactive multimedia multiple path overlay routing multiple description coding （MDC） forward error correction （FEC） rate-distortion （R-D） 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]