Title :
Multimedia QoS adaptation for inter-tech roaming
Author :
Hesselman, Cristian ; Eertink, Henk ; Peddemors, Arjan
Author_Institution :
Telematica Inst., Netherlands
Abstract :
We introduce a scalable application-level QoS adaptation service for roaming between wireless networks that are based on different technologies (`inter-tech´ roaming). The service is part of a platform that supports the distribution of multimedia streams (e.g., a streamed TV channel) to mobile clients operating in a heterogeneous environment. Central to our approach is the notion of a service class, which is a domain-specific perceptual QoS level. Each domain in a wireless infrastructure must support a limited number of these service classes. Our adaptation service handles inter-tech roaming by handing a client off from one service class to another. We focus on the design of the adaptation service´s client-side components. They combine the loss characteristics of the client´s network interfaces with configurable policies to decide when to initiate a handoff to a target service class and when to complete it. We conclude with some experimental results
Keywords :
internetworking; land mobile radio; local area networks; metropolitan area networks; multimedia communication; network interfaces; quality of service; radio networks; television broadcasting; LAN; MAN; TV broadcasting; configurable policies; content switch; inter-tech roaming; loss characteristics; mobile radio; multimedia QoS adaptation; multimedia streams distribution; multiparty sessions; network interfaces; scalable application-level QoS adaptation service; service class; streamed TV channel; wireless infrastructure; wireless networks; Local area networks; Mobile communication; Multimedia communication; Network interfaces; Network servers; Quality of service; Roaming; Streaming media; TV broadcasting; Wireless networks;
Conference_Titel :
Computers and Communications, 2001. Proceedings. Sixth IEEE Symposium on
Conference_Location :
Hammamet
Print_ISBN :
0-7695-1177-5
DOI :
10.1109/ISCC.2001.935429