Effects of cell loss on the quality of service for MPEG video in ATM environment

Author

Tan, Chee Heng ; Zhang, Liren

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

fYear

1995

fDate

3-7 Jul 1995

Firstpage

11

Lastpage

15

Abstract

In this paper, the impact of cell loss on the quality of service for MPEG video in ATM environment is investigated. It has been found that the consequence of the loss of video sequence header on picture quality can be tolerated even at a high cell loss ratio of 10^-3. The loss of GOP and picture headers results in a picture loss ratio which is only slightly higher than the cell loss ratio due to the short lengths of those headers. The combined effect of GOP & picture header loss and slice loss, however, produces an errored picture ratio which renders the picture quality not easily accepted by the viewers, even if the cell loss ratio is maintained at a low level of 10^-6. Thus, forward error correction schemes may be needed in the AAL to improve the picture quality expressed in terms of errored picture ratios

Keywords

asynchronous transfer mode; data compression; error correction codes; forward error correction; protocols; telecommunication standards; video coding; AAL; ATM environment; GOP; MPEG video; cell loss ratio; errored picture ratio; errored picture ratios; forward error correction schemes; group of pictures; picture loss ratio; picture quality; quality of service; slice loss; video sequence header; Added delay; Asynchronous transfer mode; Decoding; Delay effects; Error correction; Forward error correction; Jitter; Payloads; Quality of service; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 1995. Theme: Electrotechnology 2000: Communications and Networks. [in conjunction with the] International Conference on Information Engineering., Proceedings of IEEE Singapore International

Print_ISBN

0-7803-2579-6

Type

conf

DOI

10.1109/SICON.1995.525983

Filename

525983