即時性資料傳輸在無線網路環境通訊之漣波式先期換手機制

A Ripple Style Early Handoff Scheme for Real-time Data Transmission in Wireless Networks

袁麒鈞(Irvin Yuan)

指導教授 ： 王振興 ； 王永鐘

國立臺北科技大學/電資學院/電機工程系所/碩士(2008年)

摘要

新世代行動網路提供的服務已朝向多媒體應用發展，因此如何兼顧多樣化的服務、優良的網路品質，以及有效率地使用珍貴的無線資源，已引起廣泛的研究討論。本論文提出新的允入控制方法，採用漣波式先期換手機制平衡高負載基地台的工作量，提高整體行動網路的資源使用率，補強原有動態保留頻寬機制的允入控制功能。本論文採用NS2作為模擬驗證的平台，建構虛擬的網路模型，模擬的結果顯示本論文所提出漣波式先期換手機制的允入控制方法確實能夠提高行動網路的頻寬使用率。

關鍵字

換手 ； 行動通訊 ； 允入控制

並列摘要

Mobile next generation networks must to provide multimedia applications. The issues that using the limited bandwidth resources efficiently while considering diversiform services and high network quality both provided at the same time have already been studied in extensive research. In this thesis, in order to raise the bandwidth utilization of the entire mobile network system by sharing the work load of heavy-loading base station to others, we propose a ripple style early handoff scheme to renew the dynamic bandwidth reservation scheme into a new connection admission control mechanism. As the simulation platform, NS2 is the tool we materialized our virtual network model. After simulation and verification, the proposed ripple style early handoff scheme is observed with the improvement of the bandwidth utilization of the mobile network.

並列關鍵字

handoff ； mobile telecommunication ； call admission control

參考文獻

[1] J.F Huber, “ Mobile next-generation networks,” IEEE Multimedia, vol. 11, issue 1, 2004, pp. 72-83.

[2] L. Ortigoza-Guerrero and A. H. Aghvami,　“A prioritized handoff dynamic channel allocation strategy for PCS, ” IEEE Transactions on Vehicular Technology, vol. 48, issue. 4, Jul.1999, pp.1203-1215.

[3] W. Li and A. S. Alfa, “Channel reservation for handoff calls in a PCS network,” IEEE Transactions on Vehicular Technology, vol. 49, issue. 1, Jan 2000, pp. 95-104.

[4] R. Fantacci, “Performance evaluation of prioritized handoff schemes in mobile cellular networks,” IEEE Transactions on Vehicular Technology, vol. 49, issue. 2, Mar 2000, pp. 485-493.

[5] W. Zhuang, B. Bensaou, and K. C. Chua, “Adaptive quality of service handoff priority scheme for mobile multimedia networks,” IEEE Transactions on Vehicular Technology, vol. 49, issue. 2, Mar 2000, pp. 494-505.