NDLI: A profit maximizing distribution strategy for context-aware services

Content Provider	IEEE Xplore Digital Library
Author	Buchholz, T. Hochstatter, I. Linnhoff-Popien, C.
Copyright Year	2005
Description	Author affiliation: Inst. for Informatics, Ludwig-Maximilian-Univ. Munich (Buchholz, T.; Hochstatter, I.; Linnhoff-Popien, C.)
Abstract	Large scale mobile commerce applications need to be replicated and distributed to offer an appropriate quality of service to a large audience. In this context, a very important question is when and where replicas should be placed. In this article we present a new distribution strategy for applications in content delivery networks (CDNs). It is intended to be used especially for context-aware services (CAS). The main idea is to monetarily value the benefits that an additional replica gains at a certain location and to compare this value with the costs a replica causes. In this way, the replica's contribution to the overall profit is determined. A replica's profit is dependent on the number of requests it receives per time interval. Replicas are only placed at locations where the request rate is high enough to let the profit become positive. In order to react only to persistent and significant changes of the request rate, techniques from statistical process control are used. The new strategy is evaluated by simulation. The results suggest that it consumes significantly less storage and bandwidth than currently applied alternatives, while offering a comparable performance improvement for the clients
Starting Page	144
Ending Page	153
File Size	365497
Page Count	10
File Format	PDF
ISBN	0769523919
DOI	10.1109/WMCS.2005.2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Context-aware services Iris Content addressable storage Distribution strategy Weather forecasting Internet Large-scale systems Informatics Delay Business
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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