caa a22 4500 47713274X CHVBK 20180405111708.0 cr unu---uuuuu 170330e19970101xx s 000 0 eng 10.1007/s005300050041 doi (NATIONALLICENCE)springer-10.1007/s005300050041 Spatio-temporal effects of multimedia objects storage and delivery for video-on-demand systems [Elektronische Daten] [Cyril U. Orji, Patrick O. Bobbie, Kingsley C. Nwosu] Abstract.: As the number of video streams to be supported by a digital video delivery system (DVDS) increases, an improved understanding of the necessity for reliable and cost-efficient support for a considerable number of video streams (in the magnitude of tens of thousands), and the dependency largely on software capabilities emerges. Even in the presence of an optimal hardware configuration, or model, and associated costs, using software to exploit the underlying hardware capabilities is of paramount importance. Although a number of DVDSs have become operational, their ability to deliver the required services mainly depends on the small number of streams supported and the hardware trade-offs. It is imperative that current software developments account for the eventual scalability of the number of video streams without commensurate increase in hardware. In this paper, we present strategies for the management of video streams in order to maintain and satisfy their space and time requirements. We use a DVDS architectural model with functionally dichotomized nodes: a single-node partition is responsible for data retrieval, while the remaining partition of nodes accepts user requests, determines object locations, and routes requests through the network that connects both partitions. We present a detailed analysis of the issues related to queuing I/O requests and data buffering. The discussion includes the requirements for arranging and scheduling I/O requests and data buffers, with the objective of guaranteeing the required data availability rates for continuous media display. Springer-Verlag Berlin Heidelberg, 1997 Key words:Buffer queues - Buffer scheduling - Data allocation - Data striping - Stream management - Video delivery nationallicence Orji Cyril U. School of Computer Science, Florida International University, Miami, FL 33199, USA, US aut Bobbie Patrick O. Department of CIS, Florida A&M University, Tallahassee, FL 32307, USA, US aut Nwosu Kingsley C. Lucent Technologies (AT&T Bell Labs), 67 Whippany Rd., Whippany, NJ 07981-0903, USA, US aut https://doi.org/10.1007/s005300050041 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005300050041 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Orji Cyril U. School of Computer Science, Florida International University, Miami, FL 33199, USA, US aut NATIONALLICENCE 700 1- Bobbie Patrick O. Department of CIS, Florida A&M University, Tallahassee, FL 32307, USA, US aut NATIONALLICENCE 700 1- Nwosu Kingsley C. Lucent Technologies (AT&T Bell Labs), 67 Whippany Rd., Whippany, NJ 07981-0903, USA, US aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer