Authors: Yutao Ling; Benshun Yi; Jianbin Wu; Yuan Yao
Addresses: School of Electronic Information, Wuhan University, Luojia Hill, Wuhan 430072, China. ' School of Electronic Information, Wuhan University, Luojia Hill, Wuhan 430072, China. ' Department of Information and Technology, Huazhong Normal University, Guizi Hill, Wuhan 430079, China. ' Department of Information and Technology, Huazhong Normal University, Guizi Hill, Wuhan 430079, China
Abstract: In next-generation wireless networks, effective management of the limited radio resources is very important to provide mobile multimedia services with Quality of Service (QoS) guarantees. Many mechanisms based on Bandwidth Reservation (BR) have been proposed to decrease connection blocking/dropping probability. In this paper, we propose an adaptive and dynamic reservation as well as Call Admission Control (CAC) method for multimedia traffic in wireless systems. The analytical results are supported by simulation and show that this work improves the service quality by minimising the new Call Blocking Probability (CBP) and handoff Call Dropping Probability (CDP).
Keywords: wireless networks; bandwidth reservation; QoS; quality of service; CAC; call admission control; adaptive optimisation; mobile multimedia services; simulation; call blocking probability; handoff call dropping probability.
International Journal of Computer Applications in Technology, 2011 Vol.42 No.4, pp.298 - 305
Published online: 12 Mar 2012 *Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article