Quality of Service and call admission control for adaptive multimedia services in wireless/mobile networks

Status	已發表Published
	Quality of Service and call admission control for adaptive multimedia services in wireless/mobile networks
	Xiao Yang; Chen C.L.Philip; Wang Yan
	2000-12-01
Source Publication	National Aerospace and Electronics Conference, Proceedings of the IEEE
Volume	1
Pages	214-220
Abstract	Multimedia services with Quality of Service (QoS) have become very demanded in wireless/mobile networks. Call admission control (CAC) is vital for these services partially due to the network's limited capacity. In this paper, we propose a call admission control framework for adaptive multimedia services in a wireless/mobile network, where the bandwidth of an ongoing call is time-varying during its lifetime. A call is degraded if the assigned bandwidth is below its request bandwidth. We introduce a new QoS parameter: degraded area size (DAS). It stands for the normalized mean product of the proportion of a call's degraded time and the degree of degradation. Based on DAS, we present a CAC model to show how to guarantee DAS. We also introduce a bandwidth reallocation algorithm to adjust calls' bandwidth in a cell. Simulation results are compared with those from non - adaptive multimedia services and show that the performance of our method is better.
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Conference paper
Collection	University of Macau
Affiliation	Wright State University
Recommended Citation GB/T 7714	Xiao Yang,Chen C.L.Philip,Wang Yan. Quality of Service and call admission control for adaptive multimedia services in wireless/mobile networks[C], 2000, 214-220.
APA	Xiao Yang., Chen C.L.Philip., & Wang Yan (2000). Quality of Service and call admission control for adaptive multimedia services in wireless/mobile networks. National Aerospace and Electronics Conference, Proceedings of the IEEE, 1, 214-220.

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