MPEG-2在ATM网络的传输  

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,重庆400065

出　　处：《通信技术》2001年第6期44-47,共4页Communications Technology

摘　　要：随着ATM技术和编码技术的成熟,ATM上可以传送增强型媒体,这使得视听业务的广泛应用成为可能。主要讨论在ATM网络上恒定比特率(CBR)或可变比特率(VBR)的MPEG-2的传输,这涉及到适配层的选择,MPEG-2帧的封装,ATM业务类型的选择等问题。With the growth of Asynchoronous Transfer Mode(ATM) technology and the maturity of coding standards, the wide use of high-quality audio-visual services becomes possible.In this article,we discuss the principle 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.These include the choice of adaptation layer,method of encapsulation of MPEG-2 packets in AAL packets,selection of service class in the ATM network.

关 键 词：通信网 ATM网 MPEG-2 

分 类 号：TN915.2[电子电信—通信与信息系统]