相對於現行蜂巢式無線通訊服務(Cellular wireless communicationservices)，第三代無線通訊(Third generation wireless communication)主要的突破在於提供高速的資料傳遞、行動網際網路(一般簡稱行動上網)、以及行動多媒體傳輸服務等。上述目標的達成除了頻寬與系統容量的技術需要解決外，對於通訊架構、IP管理、行動管理等諸多管理策略(Strategy)與機制(Mechanism)問題與設計亦須找出最佳的解決方案。本篇論文目的在於一個階層性第三代蜂巢式無線通訊傳輸架構，並研究蜂巢式IP (Cellular IP)與行動IP(Mobile IP)在此階層式無線通訊傳輸架構下的實行機制，以確實有效地達成IP管理，以及滿足使用者對行動網際網路與影音多媒體傳輸服務的需求。並於此一架構下研究行動主機網址(IP of mobile host)的管理機制、頻寬分派管理(Channel assignment management)演算法、交遞(Handoff)演算法及QoS策略等，以求在IMT-2000的技術規範下，如何有效地滿足使用者對於無線通訊提供行動上網友影音多媒體資料傳遞服務的需求，同時有效地減輕系統管理的負擔，提昇效能。 It does not satisfy the user's necessary that it provides only voicebearer over wireless communications. Therefore, it's an importantfeature of next generation wireless communication to offer thiscapability through mobile internet. Mobile IP allows mobile hosts tochange their location and reduce data packet loss probability inwireless communication network. However, mobile IP still have somedefects in handoff and route aspects. Thus, cellular IP protocol isproposed for routing of IP datagrams to mobile stations and fasthandoff control in a limited geographical area. It can cooperate withmobile IP to provide wide area mobility support. In this paper, weoffer a Soft-handoff method to improve Quality of Service and resourceswitching management to reduce data packet loss for mobile multimediacommunication in cellular IP and mobile IP network.
關聯:
第一屆離島資訊技術與應用研討會論文集=Proceedings of the First Conference on Information Technology and Applications in Outlying Islands，頁284-299
