The design philosophy of the DARPA internet protocols
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Receiver-driven layered multicast
Conference proceedings on Applications, technologies, architectures, and protocols for computer communications
Mobile IP: the Internet unplugged
Mobile IP: the Internet unplugged
An active service framework and its application to real-time multimedia transcoding
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Vertical handoffs in wireless overlay networks
Mobile Networks and Applications - Special issue: mobile networking in the Internet
End-to-end arguments in system design
ACM Transactions on Computer Systems (TOCS)
Application level hand-off support for mobile media transcoding sessions
NOSSDAV '02 Proceedings of the 12th international workshop on Network and operating systems support for digital audio and video
MarconiNet supporting streaming media over localized wireless multicast
WMC '02 Proceedings of the 2nd international workshop on Mobile commerce
Policy-Enabled Handoffs Across Heterogeneous Wireless Networks
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
Supporting Multimedia Service Polymorphism in Dynamic and Heterogeneous Environments
Supporting Multimedia Service Polymorphism in Dynamic and Heterogeneous Environments
Multimedia QoS Adaptation for Inter-tech Roaming
ISCC '01 Proceedings of the Sixth IEEE Symposium on Computers and Communications
A scalable and robust qos architecture for wifi p2p networks
ICDCIT'04 Proceedings of the First international conference on Distributed Computing and Internet Technology
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In this paper, we consider the problem of adaptively delivering live multimedia broadcasts (e.g., for applications such as TV, radio, or e-cinema) to a potentially large number of mobile hosts that roam about in a wireless internet with hotspots. We take a user-oriented approach based on an application-level delivery infrastructure consisting of and managed by (value-added) service providers. The service providers are mobility-aware and offer broadcasts in configurations that are optimized for wireless links and mobile hosts. In hotspots, mobile hosts may be able to simultaneously reach several localized service providers through different interfaces. Within this context, we present the design of a lightweight application-level protocol that enables mobile hosts to select a service provider from which they want to receive a broadcast. Mobile hosts use the protocol to begin receiving a broadcast and to remain connected to the same logical broadcast as they move across subnets. The protocol is independent of the actual stream control protocol (e.g., RTSP) that service providers might use. We show how our protocol can be realized with the existing protocols SIP and SDP. The realization uses SIP in combination with SDP's offer-answer model in a new way.