Title :
Proposal of an extended AAL5 for VBR MPEG-2 over ATM
Author :
Mehaoua, Ahmed ; Boutaba, Raouf ; Pujolle, Guy
Author_Institution :
Inst. of Comput. Res., McGill Coll., Montreal, Que., Canada
Abstract :
Transmission of VBR MPEG-2 applications over ATM networks requires efficient mechanisms to minimize video quality degradation in situation of loss. The key factor that controls the end-to-end performance is the ATM adaptation layer. AAL 5 is currently the most commonly used but is still inadequate for variable bit rate video. We propose a new service specific convergence sublayer to improve AAL 5 capabilities. An MPEG-2 video stream encapsulation strategy and a new cell priority assignation scheme are also presented
Keywords :
asynchronous transfer mode; code standards; packet switching; telecommunication standards; video coding; visual communication; ATM; ATM adaptation layer; MPEG-2 video stream encapsulation; VBR MPEG-2; cell priority; extended AAL5; performance; service specific convergence sublayer; variable bit rate video; video quality degradation; Asynchronous transfer mode; Bit rate; Communication system traffic control; Computer networks; Convergence; Decoding; Educational institutions; Encapsulation; Jitter; Proposals;
Conference_Titel :
Multimedia Computing and Systems '97. Proceedings., IEEE International Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-8186-5530-5
DOI :
10.1109/MMCS.1997.609784
