| 摘要(英) |
Recently, Wi-Fi systems have been widely deployed for public mobile Internet services. Contrast to Wi-Fi,WiMax is a novel technology. WiMax have a lot of advantages than Wi-Fi, including high capacity、large communication range and high speed etc…. WiMax and Wi-Fi will coexist before WiMax construction and development are ripe . Bandwidth is an extremely valuable and scarce resource in a wireless network.Therefore,efficient bandwidth management is necessary in order to provide high quality service to users with different requirements in a multimedia wireless/mobile network. In this paper, we combine Wi-Fi and WiMax technolog, propose an dynamic bandwidth management algorithm that adjusts bandwidth capacity adaptively based on existing network conditions.
The most important contribution of our work is an adaptive
algorithm that is able to resolve conflicting performance criteria- bandwidth utilization, call dropping and call blocking
probabilities. Our algorithm is quite flexible, is responsive to
current traffic conditions in cellular networks, and tries to
strike the appropriate performance balance between contradictory requirements for QoS sensitive multimedia services. |
| 參考文獻 |
[1]Sungwook Kim and Pramod K. Varshney, Fellow, IEEE
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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 53, NO. 3, MAY 2004 Page(s):835 – 846.
[2]WiMAX Forum,http://www.wimaxforum.org
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[9]Wei Li; Hang Chen; Agrawal, D.P.;
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[11]Andrew S. Tanenbaum”Computer Networks 4th ed.”2003
[12] Pyramid”WiMAX and Wi-Fi: Unwiring the World”November 19, 2003
[13] Anjlica Malla, Mona El-Kadi, Stephan Olariu, and PetiaTodorova“A Fair Resource Allocation Protocol for Multimedia Wireless Networks” IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, VOL. 14, NO. 1, JANUARY 2003
[14] Chr.Bettstetter, H.Hartenstein, and X.P´erez-Costa, “Stochastic Properties of the Random Waypoint Mobility Model,＂ACM Mobicom Workshop MSWIM,2002. |
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