Performance evaluation of a fuzzy-based CAC scheme for wireless cellular networks: a case study considering priority of on-going connections

Authors:
Gjergji Mino;Leonard Barolli;Fatos Xhafa;Arjan Durresi;Akio Koyama
Affiliations:
Graduate School of Engineering, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi-Ku, Fukuoka 811-0295, Japan.;Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan.;Department of Languages and Informatics Systems, Technical University of Catalonia, Jordi Girona 1-3, 08034 Barcelona, Spain.;Department of Computer and Information Science, Indiana University Purdue University at Indianapolis (IUPUI), 723 W. Michigan Street SL 280, Indianapolis, IN 46202, USA.;Department of Informatics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan
Venue:
International Journal of Business Intelligence and Data Mining
Year:
2010

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Abstract

The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service (QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning. However, the decision for CAC is very challenging issue due to user mobility, limited radio spectrum, and multimedia traffic characteristics. In our previous work, we proposed a fuzzy-based CAC system and compared the performance of the proposed system with Shadow Cluster Concept (SCC). In this work, we extend our work by considering the priority of the on-going connections. We evaluate by simulations the performance of the proposed system and compare its performance with our previous work. The performance evaluation shows that the proposed system has a good behaviour in keeping the QoS of on-going connections.