Finding r-Dominating Sets and p-Centers of Trees in Parallel
IEEE Transactions on Parallel and Distributed Systems
Journal of Systems and Software
Multimedia Tools and Applications
Computer Networks: The International Journal of Computer and Telecommunications Networking - Wireless IP through integration of wireless LAN and cellular networks
Agent-based middleware to access multimedia services in a Grid environment
Multiagent and Grid Systems
Journal of Parallel and Distributed Computing
HD/SHD still image database system and image distribution in broadband network applications
Computers and Electrical Engineering
Data placement and prefetching with accurate bit rate control for interactive media server
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Video Data Delivery using Slotted Patching
Journal of Network and Computer Applications
Journal of Parallel and Distributed Computing
Computer Networks: The International Journal of Computer and Telecommunications Networking - Wireless IP through integration of wireless LAN and cellular networks
A novel server-side proxy caching strategy for large-scale multimedia applications
Journal of Parallel and Distributed Computing
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Current video-on-demand (VoD)) systems can be classified into two categories: 1) true-Voll) (TVoD) and 2) near-VoD (NVod)). TVoD systems allocate a dedicated channel for every user to achieve short response times so that the user can select what video to play, when to play it, and perform interactive VCR-like controls at will. By contrast, NVoD systems transmit videos repeatedly over multiple broadcast or multicast channels to enable multiple users to share a single video channel so that system cost can be substantially reduced. The tradeoffs are limited video selections, fixed playback schedule, and limited or no interactive control. TVoD systems can be considered as one extreme where service quality is maximized, while NVoD systems can be considered as the other extreme where system cost is minimized. This paper proposes a novel architecture called Unified VoD) (UVoD) that can be configured to achieve cost-performance tradeoff anywhere between the two extremes (i.e., TVoD and NVoD). Assuming that a video client can concurrently receive two video channels and has local buffers for caching a portion of the video data, the proposed UVoD architecture can achieve significant performance gains (e.g., 400% more capacity for a 500-channel system) over TVoD under the same latency constraint. This paper presents the UVoD architecture, establishes a performance model, and analyzes UVoD's performance via numerical and simulation results