Title :
Evaluation of reservation-arbitrated access schemes for statistical multiplexing of variable-bit-rate video traffic over dual-bus metropolitan area networks
Author :
Chan, H.C.B. ; Leung, V.C.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
6/1/1998 12:00:00 AM
Abstract :
To address the problem of video communications over 802.6 MANs, a reservation-arbitrated (RA) access protocol is proposed which allows a variable-bit-rate video source to reserve isochronous channels on a bandwidth-on-demand basis. The paper explains the general method of RA access, compares four different schemes of acquiring incremental bandwidth in response to a reservation request, and evaluates the performance of RA access by simulations using two video source models. Results indicate that RA access provides a fair service under a cyclic capturing mechanism, permits statistical multiplexing while providing nearly isochronous transport service, allows a video source to adapt to its reserved bandwidth during network congestion, and facilitates the implementation of layered video coding techniques
Keywords :
IEEE standards; access protocols; metropolitan area networks; multiplexing; performance evaluation; telecommunication standards; telecommunication traffic; variable rate codes; video coding; visual communication; 802.6 MAN; bandwidth-on-demand; cyclic capturing mechanism; dual-bus metropolitan area networks; fair service; incremental bandwidth; isochronous channels; isochronous transport service; layered video coding; network congestion; performance; reservation request; reservation-arbitrated access protocol; simulations; statistical multiplexing; variable-bit-rate video traffic; video communications; video source models;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:19981960
