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Application of a new explicit‐rate ABR traffic controller
Author(s) -
Lu Jun,
Mir Nader F.
Publication year - 2001
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.493
Subject(s) - computer science , scheduling (production processes) , controller (irrigation) , bounded function , real time computing , broadband , control theory (sociology) , control (management) , mathematical optimization , telecommunications , mathematics , mathematical analysis , artificial intelligence , agronomy , biology
In broadband integrated communication systems, the classical method of max–min fair‐rate allocation for traffic control does not support the weighted‐rate guarantee. The weighted‐rate guarantee is necessary for available‐bit rate (ABR) service models. This fact motivates that the weighted max–min (WMM) fair‐rate allocation for the ABR traffic is widely studied. However, the combination of close‐loop feedback control with WMM algorithm has not appeared in the previous research. In this paper, a practical WMM fair‐rate allocation model is proposed. This scheduling scheme combines and integrates the congestion avoidance using proportional control (CAPC) and the weighted max–min fair‐rate allocation. This model is designed to achieve higher utilization and also bounded delay for ABR traffic flow control. In the system under analysis, the performance of this new weighted traffic scheduler is evaluated. The system presented in this paper is also compared with WMM and CAPC methods. Copyright © 2001 John Wiley & Sons, Ltd.

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