Transmitting Variable-Bit-Rate Videos on Clustered VoD Systems
نویسندگان
چکیده
Due to the burstiness, scheduling VBR streams and yet achieving high resources utilization on a clustered video server has been considered a difficult problem. In this paper, we propose a simple but effective VBR scheduling algorithm for generating conflict-free network transmission schedules on clustered VoD systems. Experimental results show that this novel scheduling algorithm can achieve near 100% network utilization with a negligible block miss rate.
منابع مشابه
Slice-and-Patch - An Algorithm to Support VBR Video Streaming in a Multicast-based Video-on-Demand System
In recent years, a number of sophisticated architectures have been proposed to provide VoD service using multicast transmissions. Compared to their unicast counterparts, these multicast VoD systems are highly scalable and can potentially serve millions of concurrent users. Nevertheless, these systems are designed for streaming constant-bit-rate (CBR) encoded videos and thus cannot benefit from ...
متن کاملOptimal Video Replication and Placement on a Cluster of Video-on-Demand Servers
A cost-effective approach to building up scalable Videoon-Demand (VoD) servers is to couple a number of VoD servers together in a cluster. In this article, we study a crucial video replication and placement problem in a distributed storage VoD cluster for high quality and high availability services. We formulate it as a combinatorial optimization problem with objectives of maximizing the encodi...
متن کاملVideo-on-Demand Broadcasting Protocols: a Comprehensive Study
Broadcasting protocols are proved to be efficient for transmitting most of the popular videos in video-on-demand systems. We propose a generalized analytical approach to evaluate the efficiency of the broadcasting protocols and derive the theoretical lower bandwidth requirement bound for any periodic broadcasting protocols. By means of the proposed analytical tool temporal-bandwidth map, the ap...
متن کاملTrace–Adaptive Fragmentation for Periodic Broadcast of VBR Video
Periodic broadcast schemes have been proposed as a scalable solution for the implementation of Video–on– Demand (VoD) systems. Efficient periodic broadcast schemes fragment each video into a number of segments assuming that the videos are encoded using Constant Bit Rate (CBR) coders. We focus instead on the more efficient and commonplace class of Variable Bit Rate (VBR) encoded videos. The clai...
متن کاملA Novel Caching Strategy in Video-on-Demand (VoD) Peer-to-Peer (P2P) Networks Based on Complex Network Theory
The popularity of video-on-demand (VoD) streaming has grown dramatically over the World Wide Web. Most users in VoD P2P networks have to wait a long time in order to access their requesting videos. Therefore, reducing waiting time to access videos is the main challenge for VoD P2P networks. In this paper, we propose a novel algorithm for caching video based on peers' priority and video's popula...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000