Novel approach to the queue stability analysis of polling models

Sum Lam; Rocky K. C. Chang

doi:10.1117/12.325861

7 October 1998 Novel approach to the queue stability analysis of polling models

Sum Lam, Rocky K. C. Chang

Proceedings Volume 3530, Performance and Control of Network Systems II; (1998) https://doi.org/10.1117/12.325861
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

Multipoint communications has been an increasingly focused topic in computer communication networks, including both the Internet and the ATM networks. We have previously presented, analyzed, and evaluated new point-to-multipoint ABR flow control algorithms. In this paper, we focus on multipoint- to-point flow control. As the major objective of ABR service is to provide minimum-loss, fair service to data traffic, an effective merge-point scheme for multipoint-to-point flow control should guarantee fairness. In this paper, we first examine the 'essential fairness' concept proposed by Wang and Schwartz for point-to-multipoint flow control in the Internet. We extend and enhance the concept to the multipoint-to-point ABR flow control. A general algorithm guaranteeing essential fairness is presented, with a detailed implementation on top of the ERICA unicast algorithm proposed by Jain, et. al. The general algorithm may be used for a wide range of fairness specifications to accommodate various bandwidth requirement from unicast or multicast sources of different application streams. Three major variations of the general algorithm are presented. These three schemes are simulated and evaluated, and compared with an existing scheme proposed by Ren, Siu, and Suzuki. Simulation results show that the proposed merge- point algorithm achieves, within short transient time, max- min fairness based on different weights given to individual sources or sessions, or according to various specifications of fairness. The fairness concept and the general algorithm presented here may be readily applied to other high-speed networks such as the Next Generation Internet and Wireless ATM, and to different multicast settings such as point-to- multipoint and multipoint-to-multipoint.

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Sum Lam and Rocky K. C. Chang "Novel approach to the queue stability analysis of polling models", Proc. SPIE 3530, Performance and Control of Network Systems II, (7 October 1998); https://doi.org/10.1117/12.325861

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KEYWORDS

Systems modeling

Computing systems

Evolutionary algorithms

Computer simulations

Internet

Performance modeling

Stochastic processes

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