Performance Analysis of Spillover-Partitioning Call Admission Control in Mobile Wireless Networks

Authors:
Okan Yilmaz;Ing-Ray Chen;Gregory Kulczycki;William B. Frakes
Affiliations:
Computer Science Department, Virginia Tech, Falls Church, USA;Computer Science Department, Virginia Tech, Falls Church, USA;Computer Science Department, Virginia Tech, Falls Church, USA;Computer Science Department, Virginia Tech, Falls Church, USA
Venue:
Wireless Personal Communications: An International Journal
Year:
2010

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Abstract

We propose and analyze spillover-partitioning call admission control (CAC) for servicing multiple service classes in mobile wireless networks for revenue optimization with quality of service (QoS) guarantees. We evaluate the performance of spillover-partitioning CAC in terms of execution time and optimal revenue obtainable by comparing it with existing CAC algorithms, including partitioning, threshold, and partitioning-threshold hybrid admission control algorithms. We also investigate fast spillover-partitioning CAC that applies a greedy heuristic search method to find a near optimal solution fast to effectively trade off solution quality for solution efficiency. The solution found by spillover-partitioning CAC is evaluated by an analytical model developed in the paper. We demonstrate through test cases that spillover-partitioning CAC outperforms existing CAC algorithms for revenue optimization with QoS guarantees in both solution quality and solution efficiency for serving multiple QoS service classes in wireless networks.