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Session and Network Support for Autonomous Context-Aware Multiparty Communications in Heterogeneous Mobile Systems

Antoniou, J. ; Christophorou, C. Christophorou ; Sargento, S. ; Pinto, F. ; Carapeto, N. ; Mota, T. ; Simões, J. ; Pitsillides, A.

Vol. 1, Nº 4, pp. 1 - 24, December, 2010.

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The increase of networking complexity requires the design of new performance optimization schemes for delivering
different types of sessions to users under different conditions. In this regard, special attention is given
to multi-homed environments, where mobile devices cross areas with overlapping access technologies (Wi-Fi,
3G, WiMax). In such a scenario, efficient multiparty delivery depends upon the grouping operation, which
must be done based on several parameters. In this paper, the authors propose context-aware sub-grouping
of content-based service groups so that the same service session can be delivered using different codings of
the same content, adapting to current network, users, session, and environment context. The context-aware
information is used to improve the sub-grouping process. This paper aims to describe these sub-grouping
techniques, and in particular how they improve network performance and user experience in the future Internet
by focusing on the improved network-level and session-level mechanisms.