Optimized call admission control in wireless networks

Authors:
Shengdong Xie;Meng Wu
Affiliations:
Nanjing University of Posts and Telecommuniations, Nanjing, Jiangsu, China;Nanjing University of Posts and Telecommuniations, Nanjing, Jiangsu, China
Venue:
ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
Year:
2008

Citing 8
Cited 1

On optimal call admission control in cellular networks

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Adaptive call admission control for QoS/revenue optimization in CDMA cellular networks

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Call Admission Control for Voice/Data Integration in Broadband Wireless Networks

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Multi-threshold bandwidth reservation scheme of an integrated voice/data wireless network

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An adaptive handoff priority scheme for wireless MC-CDMA cellular networks supporting realtime multimedia applications

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A dynamic multiple-threshold bandwidth reservation (DMTBR) scheme for QoS provisioning in multimedia wireless networks

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Optimal call admission control with QoS guarantee in a voice/data integrated cellular network

IEEE Transactions on Wireless Communications
A framework for bandwidth degradation and call admission control schemes for multiclass traffic in next-generation wireless networks

IEEE Journal on Selected Areas in Communications

Immune optimization algorithm for solving joint call admission control problem in next-generation wireless network

Engineering Applications of Artificial Intelligence

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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.