Congestion avoidance schemes for ABR traffic in ATM networks

ATM (Asynchronous Transfer Mode) was chosen as the switching and multiplexing technique for B-ISDN (Broadband-Integrated Services Digital Network) in 1988. The capability of ATM networks to provide large bandwidth and multiple quality of service (QoS) guarantees can be realized when equipped with effective congestion control mechanisms. The dissertation is centered on the development, simulation, and evaluation of congestion avoidance schemes for ABR (Available Bit Rate) traffic in ATM networks. To evaluate the performance of the schemes, a simulation model was developed and implemented. The schemes achieve high throughput, fairness, and short queue lengths and minimize retransmission of lost data by avoiding congestion.