NDLI: Improving call admission control in ATM networks using case-based reasoning

Content Provider	IEEE Xplore Digital Library
Author	Hassanein, H. Al-Monayyes, A. Al-Zubi, M.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. & Inf. Sci., Queen's Univ., Kingston, Ont., Canada (Hassanein, H.)
Abstract	This paper presents a framework for call admission control (CAC) in ATM networks based on case-based reasoning (CBR). CBR is used to correct the error estimation of the required bandwidth computed by conventional call admission control schemes, which were shown to overestimate the required bandwidth. This leads to bandwidth wastage and increased call rejection. A CBR-based system is proposed to characterize the traffic that may affect the cell loss ratio (CLR) of the network. The proposed system consists of two phases, an off-line phase and an on-line phase. In the off-line phase, the system constructs an initial explanation for having a high cell loss rate (failure cases) resulting from accepting a larger number of calls than desired. In the on-line phase, the system uses its explanations to make a decision of accepting or rejecting a new call. If a failure explanation is applicable for the new call, then the new call is rejected. Otherwise, the new call is accepted. The learning arises from receiving a feedback of the resulting CLR to evaluate the decision made by the proposed system and to update the explanation previously made. The performance of the scheme was shown to be superior compared to conventional schemes in terms of system utilization and call blocking ratios.
Sponsorship	IEEE Commun. Soc.
Starting Page	120
Ending Page	127
File Size	805674
Page Count	8
File Format	PDF
ISBN	0780370015
DOI	10.1109/IPCCC.2001.918643
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-04-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Call admission control Intelligent networks Asynchronous transfer mode Quality of service Bandwidth Telecommunication traffic Bit rate Communication system traffic control Thyristors Delay
Content Type	Text
Resource Type	Article

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