On-demand resource provisioning in cloud computing provides tailor-made resource packages (typically in the form of VMs) to meet users’ demands. Public clouds nowadays provide more and more elaborated types of VMs, but have yet to offer the most flexible dynamic VM assembly, which is partly due to the lack of a mature mechanism for pricing tailor-made VMs on the spot. This work proposes an effi...

On-demand resource provisioning in cloud computing provides tailor-made resource packages (typically in the form of VMs) to meet users’ demands. Public clouds nowadays provide more and more elaborated types of VMs, but have yet to offer the most flexible dynamic VM assembly, which is partly due to the lack of a mature mechanism for pricing tailor-made VMs on the spot. This work proposes an effi...

Grid computing was introduced with the provision of delivering high performance computing through connecting distributed heterogeneous resources over the Internet. However, due to the varied nature of Grid applications and lack of suitable resource provisioning tools and mechanisms, a major part of Grid resources remains unutilized. Therefore, provisioning mechanisms must understand how the res...

Use of virtualization in Infrastructure as a Service (IaaS) environments provides benefits to both users and providers: users can make use of resources following a pay-per-use model and negotiate performance guarantees, whereas providers can provide quick, scalable and hardware-fault tolerant service and also utilize resources efficiently and economically. With increased acceptance of virtualiz...

Hybrid Cloud computing is receiving increasing attention in recent days. In order to realize the full potential of the hybrid Cloud platform, an architectural framework for efficiently coupling public and private Clouds is necessary. As resource failures due to the increasing functionality and complexity of hybrid Cloud computing are inevitable, a failure-aware resource provisioning algorithm t...

Exponential growth of video traffic challenges the current paradigm to stream large amounts of video contents to end users. Cloud computing with elastic resource allocation supported enables cost-effective video streaming with desired QoE requirements. We abstract a new theoretical model from real systems for elastic media streaming by introducing a virtual content service provider that rents c...

Grid computing was introduced with the provision of delivering high performance computing through connecting distributed heterogeneous resources over the Internet. However, due to the varied nature of Grid applications and lack of suitable resource provisioning tools and mechanisms, a major part of Grid resources remains unutilized. Therefore, provisioning mechanisms must understand how the res...

Cloud computing is gaining strength in the IT marketplace because of its on-demand resource provisioning, high availability and elasticity. To offer these advantages, many largely centralized computing infrastructures have emerged, which results in many concerns such as resource over-provisioning, huge energy consumption, privacy protection, data security, etc. In this proposal, we envision a d...

Efficient network provisioning mechanisms are essential to support service differentiation in the Internet. In this paper we propose a distributed provisioning architecture for intra-domain Quality of Service networks. We propose a new service model and we characterize the demand behavior of network’s users based on physically reasonable utility functions. This allows us to develop an efficient...

This paper presents Contory, a middleware specifically deployed to support provisioning of context information on mobile devices such as smart phones. Contory integrates multiple strategies for context provisioning, namely internal sensors-based, external infrastructure-based, and distributed provisioning in ad hoc networks. Applications can query Contory about context items of different types,...