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Using Anycast Concept to Improve QoS of Session-Oriented Mobile Services

In response to the presence of portable devices and the change in usage patterns, mobility support for computer networking has received increasing attentions in recent years. There has been wide variety of established works focusing on the shortening of the handover delay. Most of them had tried their best in maintaining the connections to their peer nodes as mobile nodes moving across different network domains. This might not be a best policy in certain applications, such as homogeneous content distribution systems.
A new handover scheme incorporating anycasting and service migration is developed and presented in this thesis. In the proposed approach, anycast is used to locate a new nearest server as a mobile node entering a new domain, and an ongoing service will be dynamically migrated from a distant server to a new server with shorter weighted network distance to the client. As a result, the individual service connection, as well as the global network environment, will benefit from the service migration, in terms of improved service quality and bandwidth utilization.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0828106-173944
Date28 August 2006
CreatorsYang, Kai-ting
ContributorsRung-Hung Gau, Tsang-Ling Sheu, Hsiao-kuang Wu, Ren-Hung Hwang, Wei-kuang Lai
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0828106-173944
Rightsrestricted, Copyright information available at source archive

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