DocumentCode
2399677
Title
Mobile agents for QoS tailoring, control and adaptation over the internet: the ubiQoS video on demand service
Author
Baschieri, Francesco ; Bellavista, Paolo ; Corradi, Antonio
Author_Institution
Dipt. di Elettronica, Inf. e Sistemistica, Bologna Univ., Italy
fYear
2002
fDate
2002
Firstpage
109
Lastpage
118
Abstract
Service provision over the Internet has to address the issues of differentiated Quality-of-Service (QoS) and ubiquitous accessibility. Internet services should consider user QoS desiderata together with various properties of servers providing replicated/partitioned services and of different access devices/points. The major paper claim is that the provision of services with negotiated and controlled QoS over best-effort networks requires a distributed support infrastructure consisting of active nodes along the path between clients and servers. The paper proposes Mobile Agents (MAs) as a suitable technology to implement active infrastructures and, in particular, presents the MA-based design and implementation of the ubiQoS middleware for Video on Demand. At negotiation time, ubiQoS establishes an active path of intermediate nodes that tailor QoS of multimedia flows depending on user profile and device characteristics. At provision time, ubiQoS controls the offered quality to adapt locally when and where network resource availability changes
Keywords
Internet; client-server systems; distributed programming; multimedia communication; quality of service; software agents; video on demand; Internet services; Video on Demand; active infrastructures; active nodes; best-effort networks; clients; differentiated Quality-of-Service; distributed support infrastructure; multimedia flows; network resource availability; servers; ubiQoS middleware; ubiquitous accessibility; Business; Mobile agents; Network servers; Personal communication networks; Protocols; Quality of service; Utility programs; Web and internet services; Web server; Workstations;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications and the Internet, 2002. (SAINT 2002). Proceedings. 2002 Symposium on
Conference_Location
Nara
Print_ISBN
0-7695-1447-2
Type
conf
DOI
10.1109/SAINT.2002.994460
Filename
994460
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