Articles

Multi-objective dynamic management of virtual machines in cloud environments

The management strategy of a data center needs access to sufficient resources in order to handle different requests of applications, while minimizing the consumed energy. With regard to high and varying resour...

Authors: Mahdi Mollamotalebi and Shahnaz Hajireza

Data security in decentralized cloud systems – system comparison, requirements analysis and organizational levels

Cloud computing has been established as a technology for providing needs-orientated and use-dependent IT resources, which now are being used more frequently for business information systems. Particularly in te...

Authors: André Müller, André Ludwig and Bogdan Franczyk

Towards energy aware cloud computing application construction

The energy consumption of cloud computing continues to be an area of significant concern as data center growth continues to increase. This paper reports on an energy efficient interoperable cloud architecture ...

Authors: Django Armstrong, Karim Djemame and Richard Kavanagh

Cloud resource management: towards efficient execution of large-scale scientific applications and workflows on complex infrastructures

Cloud computing evolved from the concept of utility computing, which is defined as the provision of computational and storage resources as a metered service. Another key characteristic of cloud computing is mu...

Authors: Nelson Mimura Gonzalez, Tereza Cristina Melo de Brito Carvalho and Charles Christian Miers

A novel hybrid of Shortest job first and round Robin with dynamic variable quantum time task scheduling technique

Cloud computing is a ubiquitous network access model to a shared pool of configurable computing resources where available resources must be checked and scheduled using an efficient task scheduler to be assigne...

Authors: Samir Elmougy, Shahenda Sarhan and Manar Joundy

Migration of a SCADA system to IaaS clouds – a case study

SCADA systems allow users to monitor and/or control physical devices, processes, and events remotely and in real-time. As these systems are critical to industrial processes, they are often run on highly reliab...

Authors: Philip Church, Harald Mueller, Caspar Ryan, Spyridon V. Gogouvitis, Andrzej Goscinski and Zahir Tari

Can functional characteristics usefully define the cloud computing landscape and is the current reference model correct?

The NIST definition of cloud computing has been accepted by the majority of the community as the best available description to fully capture the variety of factors which determine how different stakeholders cr...

Authors: Neil Caithness, Michel Drescher and David Wallom

Energy-efficient service-oriented architecture for mobile cloud handover

Mobile cloud computing uses features to deliver outsourcing data to remotely available mobile devices. However, the flexible nature of the mobile device is a critical challenge for the mobile cloud computing e...

Authors: Qassim Bani Hani and Julius P. Dichter

A novel coordinated resource provisioning approach for cooperative cloud market

Cloud computing has been the enabling technology for shifting mass scale computation and storage requirements from individually owned clients towards an on-demand and utility styled alternative that provides m...

Authors: K Hemant Kumar Reddy, Geetika Mudali and Diptendu Sinha Roy

Privacy preserving model: a new scheme for auditing cloud stakeholders

The Cloud computing paradigm provides numerous attractive services to customers such as the provision of the on-demand self-service, usage-based pricing, ubiquitous network access, transference of risk, and lo...

Authors: Abdul Razaque and Syed S. Rizvi

Optimal and suboptimal resource allocation techniques in cloud computing data centers

Cloud service providers are under constant pressure to improve performance, offer more diverse resource deployment options, and enhance application portability. To achieve these performance and cost objectives...

Authors: Mohamed Abu Sharkh, Abdallah Shami and Abdelkader Ouda

Dynamic spatial index for efficient query processing on the cloud

Data owners with large volumes of data can outsource spatial databases by taking advantage of the cost-effective cloud computing model with attractive on-demand features such as scalability and high computing ...

Authors: Ibrahim Kamel, Ayesha M. Talha and Zaher Al Aghbari

Tackling uncertainty in long-term predictions for host overload and underload detection in cloud computing

Dynamic workloads in cloud computing can be managed through live migration of virtual machines from overloaded or underloaded hosts to other hosts to save energy and/or mitigate performance-related Service Lev...

Authors: Dorian Minarolli, Artan Mazrekaj and Bernd Freisleben

An autonomic prediction suite for cloud resource provisioning

One of the challenges of cloud computing is effective resource management due to its auto-scaling feature. Prediction techniques have been proposed for cloud computing to improve cloud resource management. Thi...

Authors: Ali Yadavar Nikravesh, Samuel A. Ajila and Chung-Horng Lung

An exploration of the determinants for decision to migrate existing resources to cloud computing using an integrated TOE-DOI model

Migrating existing resources to cloud computing is a strategic organisational decision that can be difficult. It requires the consideration and evaluation of a wide range of technical and organisational aspect...

Authors: Adel Alkhalil, Reza Sahandi and David John

Framework for context-aware computation offloading in mobile cloud computing

Computation offloading is a promising way to improve the performance as well as reducing the battery power consumption of a mobile application by executing some parts of the application on a remote server. Rec...

Authors: Xing Chen, Shihong Chen, Xuee Zeng, Xianghan Zheng, Ying Zhang and Chunming Rong

DEF - a programming language agnostic framework and execution environment for the parallel execution of library routines

There is high demand for library routines that can be included into arbitrary programs and executed in parallel in the Cloud. So our approach is to provide a framework that supports the parallelized execution ...

Authors: Thomas Feilhauer and Martin Sobotka

Fine-grained multilayer virtualized systems analysis

With the consolidation of computer services in large cloud-based data centers, almost all applications and even application development execute in virtualized systems (VS’s), sometimes nested. Whether it is in...

Authors: Cédric Biancheri and Michel R. Dagenais

MDA: message digest-based authentication for mobile cloud computing

The emerging area of mobile cloud computing will influence the future of varied applications, such as electronic commerce and health informatics. It is expected to rise in popularity over other models in cloud...

Authors: Saurabh Dey, Srinivas Sampalli and Qiang Ye

Optimizing virtual machine placement for energy and SLA in clouds using utility functions

Cloud computing provides on-demand access to a shared pool of computing resources, which enables organizations to outsource their IT infrastructure. Cloud providers are building data centers to handle the cont...

Authors: Abdelkhalik Mosa and Norman W. Paton

High availability in clouds: systematic review and research challenges

Cloud Computing has been used by different types of clients because it has many advantages, including the minimization of infrastructure resources costs, and its elasticity property, which allows services to b...

Authors: Patricia T. Endo, Moisés Rodrigues, Glauco E. Gonçalves, Judith Kelner, Djamel H. Sadok and Calin Curescu

Prediction-based VM provisioning and admission control for multi-tier web applications

We present a prediction-based, cost-efficient Virtual Machine (VM) provisioning and admission control approach for multi-tier web applications. The proposed approach provides automatic deployment and scaling o...

Authors: Adnan Ashraf, Benjamin Byholm and Ivan Porres

A risk assessment model for selecting cloud service providers

The Cloud Adoption Risk Assessment Model is designed to help cloud customers in assessing the risks that they face by selecting a specific cloud service provider. It evaluates background information obtained f...

Authors: Erdal Cayirci, Alexandr Garaga, Anderson Santana de Oliveira and Yves Roudier

Erratum to: A novel revenue optimization model to address the operation and maintenance cost of a data center

Authors: Snehanshu Saha, Jyotirmoy Sarkar, Avantika Dwivedi, Nandita Dwivedi, Anand M. Narasimhamurthy, Ranjan Roy and Shrisha Rao

Nearby live virtual machine migration using cloudlets and multipath TCP

A nearby virtual machine (VM) based cloudlet is proposed for mobile cloud computing (MCC) to enhance the performance of real-time resource-intensive mobile applications. Generally, when a mobile device (MD) di...

Authors: Fikirte Teka, Chung-Horng Lung and Samuel A. Ajila