利用ATM网络承载MPEG-2业务  

MPEG-2 Traffic Transport over ATM Network

作　　者：徐晓东[1] 井雅[1] 郭俊能[1] 

机构地区：[1]重庆邮电学院宽带网络技术研究所,重庆400065

出　　处：《重庆邮电学院学报（自然科学版）》2001年第4期30-34,57,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

摘　　要：随着 ATM技术和信源编码技术的成熟 ,使得视听业务的广泛应用成为可能。主要讨论了恒定比特率或可变比特率的 MPEG- 2网络上的传输而引出的适配层的选择、MPEG- 2帧的封装、ATM业务类型的选择以及时延与抖动的控制 。The growth of Asynchoronous Transfer Mode(ATM) technology and the maturity of coding standards have made possible the large scale deployment of highquality audio visual services. In this article, the authors discuss the principal issues involved in transporting MPEG 2 streams over ATM networks for both constant bit rate(CBR) and variable bit rate(VBR) MPEG 2 transport streams which include the choice of adaptation layer, method of encapsulation of MPEG 2 packets in AAL packets, selection of service class in the ATM network for control of delay and jitter, and methods for clock recovery and stream synchronization at the receiver.

关 键 词：MPEG-2 图像编码 异步传输网 网络承载 

分 类 号：TN919.81[电子电信—通信与信息系统]