학술논문

System support for mobile multimedia applications
Document Type
Conference
Source
Proceedings of 7th International Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV '97) Network and operating systems support for digital audio and video Network and Operating System Support for Digital Audio and Video, 1997., Proceedings of the IEEE 7th International Workshop on. :135-146 1997
Subject
Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Multimedia systems
Streaming media
Application software
Force feedback
Portable computers
Mobile computing
Computer architecture
Videoconference
Network servers
Local area networks
Language
Abstract
The emergence of free streaming media players, coupled with the availability of powerful inexpensive laptop computers has created a domain for mobile multimedia applications. Mobile multimedia applications must deal with the inherent variability generated when migrating from office to conference room, den to patio, or classroom to dorm room. This paper presents a multi-layered multimedia architecture utilizing adaptive layers and cross-layer notifications. An implementation of that architecture is demonstrated using a streaming media player that communicates with a video server while switching from wired LAN to POTS to wireless LAN, transparently adapting to new network addresses and bandwidth fluctuations. Mobility is supported by using device indications to force the adaptive feedback system into an "exploratory" mode and signal the application to re-establish the control and data channels.