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Overlay Network Technologies for QoS Control
Tutomu MURASE Hideyuki SHIMONISHI Masayuki MURATA
Publication
IEICE TRANSACTIONS on Communications
Vol.E89-B
No.9
pp.2280-2291 Publication Date: 2006/09/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.9.2280 Print ISSN: 0916-8516 Type of Manuscript: Special Section INVITED PAPER (Special Section on Networking Technologies for Overlay Networks) Category: Keyword: overlay network, QoS, quality, routing, session, transport, TCP/IP, relay,
Full Text: FreePDF(1.6MB)
Summary:
Overlay networks are expected to be a promising technology for the realization of QoS (Quality of Service) control. Overlay networks have recently attracted considerable attention due to the following advantages: a new service can be developed in a short duration and it can be started with a low cost. The definition and necessity of the overlay network is described, and the classification of various current and future overlay networks, particularly according to the QoS feature, is attempted. In order to realize QoS control, it is considered that routing overlay and session overlay are promising solutions. In particular, session and overlay networks are explained in detail since new TCP protocols for QoS instead of current TCP protocols that control congestion in the Internet can be used within overlay networks. However, many open issues such as scalability still need further research and development although overlay networks have many attractive features and possess the potential to become a platform for the deployment of new services.
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