Adaptive Bandwidth Management for ATM-based Broadband Networks: v. 32 (European University Studies) - Tapa blanda

Sinopsis

Supporting diverse applications with various Quality-of-Service guarantees in ATM-based broadband networks requires the design of a proper bandwidth control mechanism at the switch nodes. We proposed in this work a new adaptive approach to the bandwidth control and developed an Adaptive Bandwidth Scheduling Scheme, called CABS. Our scheme uses the laxity of cells and a combination of four priority types : space priority, time priority, cell loss priority and rate regulation. The novel concept facilitates achieving the desired design goals while enabling the flexible control and the lower complexity. The CABS scheme has further advantages, including isolation, fair and adaptive distribution of bandwidth. In order to give a complete solution, an integrated concept was proposed for bandwidth management, connection admission control and flow control. Several simulations were made to exemplify the service guarantees and other advantageous properties provided by the CABS scheme for the single node case and for a network configuration.

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