Support for continuous media in the DASH system
David P. Anderson, S.-Y. Tzou, Robert Wahbe, Ramesh Govindan, Matthew Andrews · 2002
The DASH resource model is defined as a basis for reserving and scheduling resources (disk, CPU, network, etc.) involved in end-to-end handling of continuous-media (information flowing continuously over real time i.e. digital audio or digital video) data. The model uses primitives that express work-load characteristics and performance requirements, and defines an algorithm for negotiated reservation of distributed resources. This algorithm is embodied in the session reservation protocol, a backward-compatible extension of the Internet Protocol. Hardware trends and future applications that motivate the DASH resource model are described. The performance requirements for using continuous media and the limitations of existing systems are discussed. The DASH resource model for reserving and scheduling resources is presented. The DASH kernel is briefly described.>