Admission Control Algorithms for Revenue Optimization with QoS Guarantees in Mobile Wireless Networks

Authors:
Ing-Ray Chen;Okan Yilmaz;I-Ling Yen
Affiliations:
Computer Science Department, Virginia Tech, Virginia, USA;Computer Science Department, Virginia Tech, Virginia, USA;Department of Computer Science, University of Texas, Dallas, USA
Venue:
Wireless Personal Communications: An International Journal
Year:
2006

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Abstract

We propose and analyze call admission control algorithms integrated with pricing for revenue optimization with QoS guarantees to serve multiple service classes in mobile wireless networks. Traditional admission control algorithms make acceptance decisions for new and handoff calls to satisfy certain QoS constraints such as the dropping probability of handoff calls and the blocking probability of new calls being lower than a pre-specified threshold. We analyze a class of partitioning andthreshold-based admission control algorithms that make acceptance/rejection decisions not only to satisfy QoS requirements but also to optimize the revenue of the system by taking prices and arrival/departure information of service calls into account. We show that for a "charge-by-time" pricing scheme, there exist optimal resource allocation settings under which the partitioning and threshold-based admission control algorithms would produce the maximum revenue obtainable by the system without sacrificing QoS requirements. Further, we develop a new hybrid admission control algorithm which outperforms both partitioning and threshold-based admission control algorithms over a wide range of input parameters characterizing the operating environment and service workload conditions. Methods for utilizing of the analysis results for realtime admission control for revenue optimization with QoS guarantees are described with numerical data given to demonstrate the applicability.