作者: Arwa Aldhalaan , Daniel A. Menasce
关键词: Computer network 、 Quality of service 、 Cloud computing 、 Service provider 、 Resource allocation (computer) 、 Virtual machine 、 Software 、 Resource management 、 Software as a service 、 Business
摘要: Software as a Service (SaaS) allows companies and individuals to use software, hosted managed by SaaS provider, on pay-per-use basis instead of paying for the entire upfront cost. providers can lease their computing infrastructure instantiate VMs that run software services from Infrastructure (IaaS) pay per basis. customers subscribe unsubscribe service at anytime. Thus, cloud provider should dynamically determine number needed function demand in way minimizes cost using an IaaS but same time guaranteeing agreed upon Quality (QoS) customers. This paper presents heuristic technique based hill-climbing be used type quantity leased order best satisfy customer demands sofware services. The approach yields near optimal solution within 2% minimum most cases visiting around 10-4 search space.