Title :
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
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;
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
DOI :
10.1109/SICON.1995.525983
