상세정보
학술지
Measured Average Cell Rate-Based Congestion Avoidance Scheme
- 발행일
- 200102
- 출처
- International Journal of Communication Systems, v.14 no.1, pp.83-94
- 협약과제
- 01MR3200, 차세대 ITS 시스템 기술개발, 임춘식
- 초록
- 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.
- KSP 제안 키워드
- ABR traffic, ATM networks, Asynchronous transfer mode, Bit Rate, Congestion Avoidance, Congestion control, Control scheme, High throughput(HTP), Initial conditions, Network performance, Rate-based