Adaptive call admission control based on reward-penalty model in wireless/mobile network

Authors:
Jian-Hui Huang;De-Pei Qian;Sheng-Ling Wang
Affiliations:
School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, China;School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, China and School of Computer Science and Engineering, Beihang University, Beijing, China;School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, China
Venue:
Journal of Computer Science and Technology
Year:
2007

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Abstract

A dynamic threshold-based Call Admission Control (CAC) scheme used in wireless/mobile network for multi-class services is proposed. In the scheme, each class's CAC thresholds are solved through establishing a reward-penalty model which strives to maximize network's revenue. In order to lower Handoff Dropping Probability (HDP), the scheme joints packet and connection levels Quality of Service constraints, designing a bandwidth degradation algorithm to accept handoff calls by degrading existing calls' bandwidth during network congestion. Analyses show that the CAC thresholds change adaptively with the average call arrival rate. The performance comparison shows that the proposed scheme outperforms the Mobile IP Reservation scheme.