Data centers in public, private, and hybrid cloud settings make it possible to provision virtual
machines (VMs) with unprecedented flexibility. However, purchasing, operating, and …

Recent years have seen the massive migration of enterprise applications to the cloud. One
of the challenges posed by cloud applications is Quality-of-Service (QoS) management …

In rapid changing the global business environment, information communication technology
(ICT) is essential for the survival of a firm, and the functions of ICT is becoming increasingly …

One of the primary functions of a cloud service provider is to allocate cloud resources to
users upon request. Requests arrive in real-time and resource placement decisions must be …

In a large Infrastructure-as-a-Service (IaaS) cloud, component failures are quite common.
Such failures may lead to occasional system downtime and eventual violation of Service …

Cloud computing is a recently developed new technology for complex systems with massive
service sharing, which is different from the resource sharing of the grid computing systems …

Despite the potential given by the combination of multi-tenancy and virtualization, resource
utilization in today's data centers is still low. We identify three key characteristics of cloud …

In this paper, we present a novel multi-objective ant colony system algorithm for virtual
machine (VM) consolidation in cloud data centres. The proposed algorithm builds VM …

Cloud computing has attracted significant attention due to the increasing demand for low-
cost, high performance, and energy-efficient computing. Profit maximization for the cloud …

Elasticity is a key characteristic of cloud computing that increases the flexibility for cloud
consumers, allowing them to adapt the amount of physical resources associated to their …