Mobility management for multi-user sessions in next generation wireless systems

Authors:
Eduardo Cerqueira;Luis Veloso;Augusto Neto;Marilia Curado;Edmundo Monteiro;Paulo Mendes
Affiliations:
University of Coimbra, Informatics Engineering, Polo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal;University of Coimbra, Informatics Engineering, Polo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal;University of Coimbra, Informatics Engineering, Polo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal;University of Coimbra, Informatics Engineering, Polo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal;University of Coimbra, Informatics Engineering, Polo II, Pinhal de Marrocos, 3030-290 Coimbra, Portugal;INESC Porto, Rua Dr. Roberto Frias, 378, 4200-465 Porto, Portugal
Venue:
Computer Communications
Year:
2008

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Abstract

Mobility management and ubiquitous access for real-time multi-user sessions with Quality of Service (QoS) support are major requirements to the success of next generation wireless systems. In this context, Multi-User Session Control (MUSC) is proposed to allow fixed and mobile users to access multi-user sessions ubiquitously, while providing QoS mapping, QoS adaptation and connectivity control in heterogeneous environments with mobile receivers and static senders. By interacting with resource allocation controllers, MUSC allows the construction of QoS-aware distribution trees over networks with different QoS models and aims to keep sessions with an acceptable quality of experience in congestion periods. Furthermore, by interacting with mobility controllers, MUSC assures the session continuity with QoS and connectivity support. MUSC was evaluated in a simulation and in an experimental environment to analyze its convergence time as well as its efficiency in allowing seamless mobility and in keeping sessions with an acceptable quality level during handover.