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A novel call admission control scheme in cellular/WLAN integration and performance analysis

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Journal of Electronics (China)

Abstract

In order to achieve the Quality of Service (QoS) provisioning and efficient resource utilization in cellular network and Wireless Local Area Network (WLAN) integration, an Integrated Service-Based Call Admission Control (ISB-CAC) scheme is proposed in this paper. The integrated network is modeled by using multi-dimensional Markov chains. The numerical analysis is presented to evaluate the important performance measures such as the blocking probability of originating calls, the dropping probability, and the average transfer time, etc. The steady-state probabilities of the multi-dimensional Markov chains are obtained by using an iterative approach, and the CAC parameters are optimally designed. The analytical model is validated by the computer simulation. It is shown that compared with the conventional WLAN-First Call Admission Control (WF-CAC) scheme, the proposed ISB-CAC scheme not only provides better QoS for mobile users but also utilizes the bandwidth resources more efficiently.

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Authors and Affiliations

  1. National Mobile Communications Research Lab, Southeast University, Nanjing, 210096, China

    Weiwei Xia & Lianfeng Shen

Authors
  1. Weiwei Xia
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  2. Lianfeng Shen
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Corresponding author

Correspondence to Weiwei Xia.

Additional information

Supported in part by the National Grand Fundamental Research Program of China (973 Program) (No. 2007CB-310606) and the Specialized Foundation for the Achievements Transformation of Science and Technology of Jiangsu Province (No. BA2006101).

Communication author: Xia Weiwei, born in 1975, female, Associate Professor.

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Xia, W., Shen, L. A novel call admission control scheme in cellular/WLAN integration and performance analysis. J. Electron.(China) 26, 168–178 (2009). https://doi.org/10.1007/s11767-007-0200-3

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  • DOI: https://doi.org/10.1007/s11767-007-0200-3

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