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Optimized call admission control in wireless networks

Published: 29 July 2008 Publication History

Abstract

Traditional traffic rate regulation/degradation schemes in call admission control (CAC) seldom take rate degradation optimization into consideration, thus can not obtain the perfect grade of service (GoS) in session layer. In this paper, we propose an enhanced rate degradation CAC (ERDCAC) scheme in multimedia wireless networks, which is an extension and optimization of the rate regulation CAC scheme. We introduce a variable which is a degradation threshold for wide-band traffic (WB) when new narrow-band (NB) connection arrives, and can be adjusted at the start of every monitor period. We develop a Markov model to analyze the ERDCAC, and design a cost function to evaluate its performance. From the result of Markov model analysis, along with the measurements of call arrival rates of all traffics, the threshold variable to acquire the best GoS is obtained. Extensive numeric results illustrate the effectiveness of the ERDCAC compared with traditional rate regulation CAC scheme which is a non-optimization rate degradation scheme.

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  • (2012)An Adaptive Call Admission Control in WiMAX Networks with Fair Trade off AnalysisAdvances in Communication, Network, and Computing10.1007/978-3-642-35615-5_69(426-430)Online publication date: 2012

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    cover image ACM Other conferences
    ICAIT '08: Proceedings of the 2008 International Conference on Advanced Infocomm Technology
    July 2008
    677 pages
    ISBN:9781605580883
    DOI:10.1145/1509315
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    New York, NY, United States

    Publication History

    Published: 29 July 2008

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    Author Tags

    1. call admission control (CAC)
    2. cost function
    3. grade of service (GoS)
    4. handoff
    5. wireless multimedia networks

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    ICAIT '08 Paper Acceptance Rate 89 of 151 submissions, 59%;
    Overall Acceptance Rate 122 of 207 submissions, 59%

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    • (2012)An Adaptive Call Admission Control in WiMAX Networks with Fair Trade off AnalysisAdvances in Communication, Network, and Computing10.1007/978-3-642-35615-5_69(426-430)Online publication date: 2012

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