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| Call Admission Control Using Fuzzy Logic in Wireless Networks |
| Ma Yu-feng; Hu Xiu-lin; Zhang Yun-yu |
| Dept of Electron. & Inform. Eng., Huazhong University of Science & Technology, Wuhan 430074, China |
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Abstract Scarcity of the spectrum resource and mobility of users make Quality-of-Service(QoS) provision a critical issue in wireless networks. This paper presents a fuzzy call admission control scheme to meet the requirement of QoS. It searches automatically the optimal number of the guard channels in a base station to make an effective use of resource and guarantee the QoS provision. Simulation compares the proposed fuzzy scheme with a dynamic channel reservation scheme. Simulation results show fuzzy scheme has a better robust performance. It outperforms the adaptive scheme in terms of call dropping probability, call blocking probability, and channel utilization.
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Received: 05 August 2004
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2005, Vol. 27 
