Connection admission control for the real-time VBR service in an ATM switch with per-VC queueing

Autor:	L. Benmohamed, M. Kodialam, Yung-Terng Wang, J. Kneuer
Rok vydání:	2002
Předmět:	Queueing theory Packet switching Virtual circuit Computer science business.industry Quality of service Asynchronous Transfer Mode ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Admission control Variable bitrate business Scheduling (computing) Computer network
Zdroj:	ISCC
DOI:	10.1109/iscc.2001.935405
Popis:	A new generation of ATM switches with more sophisticated cell queueing and scheduling capabilities are becoming available. We discuss an effective approach to connection admission control (CAC) for the real-time variable-bit-rate (rtVBR) service category in an ATM switch with per-VC queueing and scheduling. The quality of service (QoS) requirements for rtVBR are given in terms of the cell loss ratio (CLR) and the cell delay variation (CDV). Given the rtVBR traffic descriptor and QoS parameters, we compute the capacity C/sub rtVBR/ required to support all the ATM virtual circuits (VCs) in the rtVBR category while meeting their QoS requirement. As part of the process of computing C/sub rtVBR/, we also compute a per-VC effective bandwidth used to program the scheduler. We also characterize the admissible region in the 2-class case and show that it is made up of delay-dominant and loss-dominant regions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::635f815c5aee288653c47ff0d2ae33dc https://doi.org/10.1109/iscc.2001.935405 Zobrazit plný text záznamu