Measured average cell rate-based congestion avoidance scheme

Autor: Hyun-Mee Choi, William Perrizo, Kendall E. Nygard
Rok vydání: 2001
Předmět:
Zdroj: International Journal of Communication Systems. 14:83-94
ISSN: 1099-1131
1074-5351
DOI: 10.1002/dac.440
Popis: Techniques for congestion control of available bit-rate (ABR) traffic in ATM (asynchronous transfer mode) networks remain an important issue. Several congestion control schemes have been proposed to adjust the cell rates of sources with a modified or mean allowed cell rate. To make these schemes work effectively in practice, the modified or mean allowed cell rate must converge under all conditions. However, it is not easy to obtain an accurate value, and an inaccurate value could result in network performance degradation such as severe oscillations and considerable unfairness. Therefore, we propose a measured average cell rate-based congestion avoidance for ABR traffic in ATM networks. The scheme has high throughput and achieves shorter queue lengths without congestion. With measured average cell rate, the scheme provides fast convergence to a start-up virtual connection (VC) and rate of equalization from different initial conditions of the sources. Thus, this scheme provides better fairness among connections. Copyright © 2001 John Wiley & Sons, Ltd.
Databáze: OpenAIRE