Web hosting with statistical capacity guarantee

Tony K.C. Chan, Yiu Wing LEUNG*, Ernest C.M. Lam

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

3 Citations (Scopus)


We propose a new web hosting service with statistical capacity guarantee. By using this service, each customer subscribes to a certain capacity; that is, the speed that the web hosting system processes and transfers the web content, for his/her web site. The system provides the requested capacity to each web site with a probability of p where p is a given qualityof-service (QoS) requirement. To fulfill this QoS requirement, the system measures the traffic statistics of each web site and manages statistical resource sharing among the web sites. As a result the system can better utilize its resources for hosting more web sites. The proposed web hosting service involves two new decision problems: (1) an admission control problem in which the system decides whether it can accommodate a new web site and (2) an assignment problem in which the system assigns web sites to server clusters to fulfill the QoS requirement. We have formulated these decision problems and designed efficient algorithms as solutions. The simulation results demonstrate that web hosting systems that use the proposed service can host significantly more web sites via statistical resource sharing among web sites.

Original languageEnglish
Pages (from-to)54-68
Number of pages15
JournalInformation Sciences
Publication statusPublished - 1 Jan 2014

Scopus Subject Areas

  • Software
  • Control and Systems Engineering
  • Theoretical Computer Science
  • Computer Science Applications
  • Information Systems and Management
  • Artificial Intelligence

User-Defined Keywords

  • Admission control
  • Assignment
  • Quality-of-service
  • Resource management
  • Web hosting


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