Yuewei Wang, Jonathan C.L. Liu, David H.C. Du1 and Jenwei Hsieh Distributed Multimedia Research Center2 & Department of Computer Science, University of Minnesota fywang,cliu,du,[email protected] Abstract A Video-on-Demand (VOD) server needs to store hundreds of movie titles and to support thousands of concurrent accesses. We de ne access pro le as the number of concurrent accesses to each movie...

This paper describes an analysis of the evolution of peak bandwidth demand for households in the United Kingdom out to 2033. The model used to make the predictions is based on that developed by the Broadband Stakeholder Group but the model is extended to 2033 and predictions related to TV usage, web usage and file downloads are updated. A range of different scenarios are used to probe likely pe...

Cloud Computing is an emerging technology, it is based on demand service in which shared resources, information, software and other devices are provided according to the clients to the requirements at specific time with the availability of internet. Load balancing is one of the challenging issue in cloud computing. An efficient load balancing makes cloud computing more efficient and improves us...

A problem of obtaining an optimal file transfer on a file transmission net N is to consider how to transmit, with a minimum total cost, copies of a certain file of information from some vertices to others on N by the respective vertices’ copy demand numbers. This problem is NP-hard for a general file transmission net. So far, some class of N on which polynomial time algorithms for obtaining an ...

This paper introduces a technique called Demand-Only Broadcast that reduces the power consumption of the register file and result bypass network in a clustered execution core. With this technique, an instruction’s result is only broadcast within remote clusters if it is needed by dependants in those clusters. Demand-Only Broadcast was evaluated using a performance–power simulator of a high-perf...

In a P2P file-sharing system, a node finds and retrieves its desired file. If multiple nodes cache the same file to provide others, we can achieve a file-sharing system with low latency and high file availability. However, a node has to spend costs, e.g., processing load or storage capacity, on caching of a file. Consequently, a node may selfishly behave and hesitate to cache a file. In such a ...

0167-6245/$ see front matter 2012 Elsevier B.V doi:10.1016/j.infoecopol.2012.01.007 ⇑ Corresponding author. Address: Department o College, 140 Commonwealth Avenue, Chestnut Hil States. Tel.: +1 608 263 3867; fax: +1 608 262 2033 E-mail addresses: [email protected] (J.H. gmail.com (C. Nosko), [email protected] (A. So Technologies that enable free redistribution of digital goods (e.g., ...

With the conventional data sharing system, a dataintensive application usually accesses data by using either the pre-staging scheme or the on-demand access scheme. Pre-staging systems simultaneously download an entire shared file from multiple data sources even when only a tiny file fragment is required. Obviously, pre-staging systems consume unnecessary data transmission time and storage space...