|Total results: 742||
|Communication Infrastructures for Cloud Computing
Hussein T. Mouftah, Burak Kantarci.
Cloud computing has provided multiple advantages as well as challenges to software and infrastructure services. In order to be fully beneficial, these challenges facing cloud specific communication protocols must be addressed.
Communication Infrastructures for Cloud Computing presents the issues and...
Migration Path Towards Cloud-Aware Core Networks
Luis M. Contreras, Víctor López, Óscar González de Dios, Felipe Jiménez, Juan Rodríguez, Juan Pedro Fernández-Palacios.
New services like Cloud Computing and Content Distribution Networks are changing telecom operator infrastructure. The creation of on-demand virtual machines or new services in the cloud reduces the utilization of resources among users but changes traditional static network provisioning. This chapter...
Location and Provisioning Problems in Cloud Computing Networks
Federico Larumbe, Brunilde Sansò.
This chapter addresses a set of optimization problems that arise in cloud computing regarding the location and resource allocation of the cloud computing entities: the data centers, servers, software components, and virtual machines. The first problem is the location of new data centers and the...
The Cloud Inside the Network: A Virtualization Approach to Resource Allocation
João Soares, Romeu Monteiro, Márcio Melo, Susana Sargento, Jorge Carapinha.
The access infrastructure to the cloud is usually a major drawback that limits the uptake of cloud services. Attention has turned to rethinking a new architectural deployment of the overall cloud service delivery. In this chapter, the authors argue that it is not sufficient to integrate the cloud...
Dimensioning Resilient Optical Grid/Cloud Networks
Chris Develder, Massimo Tornatore, M. Farhan Habib, Brigitte Jaumard.
Optical networks play a crucial role in the provisioning of grid and cloud computing services. Their high bandwidth and low latency characteristics effectively enable universal users access to computational and storage resources that thus can be fully exploited without limiting performance penalties....
Design and Implementation of Optical Cloud Networks: Promises and Challenges
Walid Abdallah, Noureddine Boudriga.
Cloud applications have witnessed significant increase in their development and deployment. This has been driven by the low cost and high performances that can offer cloud paradigm for enterprises to implement innovative services. However, cloud services are constrained by the available transmission...
Communication Infrastructures in Access Networks
Syed Ali Haider, M. Yasin Akhtar Raja, Khurram Kazi.
Access networks are usually termed “last-mile/first-mile” networks since they connect the end user with the metro-edge network (or the exchange). This connectivity is often at data rates that are significantly slower than the data rates available at metro and core networks. Metro networks span large...
Cloud Radio Access Networks
Radio virtualization and cloud signal processing are new approaches to building cellular Radio Access Networks (RAN) that are starting to be deployed within the cellular industry. For cellular operators, Cloud RAN architectures that centrally define or decode transmissions, placing most of the...
Accelerating Mobile-Cloud Computing: A Survey
Tolga Soyata, He Ba, Wendi Heinzelman, Minseok Kwon, Jiye Shi.
With the recent advances in cloud computing and the capabilities of mobile devices, the state-of-the-art of mobile computing is at an inflection point, where compute-intensive applications can now run on today’s mobile devices with limited computational capabilities. This is achieved by using the...
Performance Evaluation of Cloud Data Centers with Batch Task Arrivals
Hamzeh Khazaei, Jelena Mišic, Vojislav B. Mišic.
Accurate performance evaluation of cloud computing resources is a necessary prerequisite for ensuring that Quality of Service (QoS) parameters remain within agreed limits. In this chapter, the authors consider cloud centers with Poisson arrivals of batch task requests under total rejection policy; task...
Energy-Efficient Optical Interconnects in Cloud Computing Infrastructures
Christoforos Kachris, Ioannis Tomkos.
This chapter discusses the rise of optical interconnection networks in cloud computing infrastructures as a novel alternative to current networks based on commodity switches. Optical interconnects can significantly reduce the power consumption and meet the future network traffic requirements....
Energy-Efficiency in Cloud Data Centers
Burak Kantarci, Hussein T. Mouftah.
Cloud computing aims to migrate IT services to distant data centers in order to reduce the dependency of the services on the limited local resources. Cloud computing provides access to distant computing resources via Web services while the end user is not aware of how the IT infrastructure is managed....
Carrier-Grade Distributed Cloud Computing: Demands, Challenges, Designs, and Future Perspectives
Dapeng Wang, Jinsong Wu.
This chapter discusses and surveys the concepts, demands, requirements, solutions, opportunities, challenges, and future perspectives and potential of Carrier Grade Cloud Computing (CGCC). This chapter also introduces a carrier grade distributed cloud computing architecture and discusses the benefits...
Energy-Efficiency in a Cloud Computing Backbone
Burak Kantarci, Hussein T. Mouftah.
Cloud computing combines the advantages of several computing paradigms and introduces ubiquity in the provisioning of services such as software, platform, and infrastructure. Data centers, as the main hosts of cloud computing services, accommodate thousands of high performance servers and high capacity...
Towards Energy Efficiency for Cloud Computing Services
Daniele Tafani, Burak Kantarci, Hussein T. Mouftah, Conor McArdle, Liam P. Barry.
Over the past decade, the increasing complexity of data-intensive cloud computing services along with the exponential growth of their demands in terms of computational resources and communication bandwidth presented significant challenges to be addressed by the scientific research community. Relevant...
Towards Energy Sustainability in Federated and Interoperable Clouds
Antonio Celesti, Antonio Puliafito, Francesco Tusa, Massimo Villari.
Cloud federation is paving the way toward new business scenarios in which it is possible to enforce more flexible energy management strategies than in the past. Considering independent cloud providers, each one is exclusively bound to the specific energy supplier powering its datacenter. The situation...
Energy Efficient Content Distribution
Taisir E.H. El-Gorashi, Ahmed Lawey, Xiaowen Dong, Jaafar Elmirghani.
In this chapter, the authors investigate the power consumption associated with content distribution networks. They study, through Mixed Integer Linear Programming (MILP) models and simulations, the optimization of data centre locations in a Client/Server (C/S) system over an IP over WDM network so as...
Communication Aspects of Resource Management in Hybrid Clouds
Luiz F. Bittencourt, Edmundo R. M. Madeira, Nelson L. S. da Fonseca.
Organizations owning a datacenter and leasing resources from public clouds need to efficiently manage this heterogeneous infrastructure. In order to do that, automatic management of processing, storage, and networking is desirable to support the use of both private and public cloud resources at the...
Scalability and Performance Management of Internet Applications in the Cloud
Wesam Dawoud, Ibrahim Takouna, Christoph Meinel.
Elasticity and on-demand are significant characteristics that attract many customers to host their Internet applications in the cloud. They allow quick reacting to changing application needs by adding or releasing resources responding to the actual rather than to the projected demand. Nevertheless...
Cloud Standards: Security and Interoperability Issues
Fabio Bracci, Antonio Corradi, Luca Foschini.
Starting from the core assumption that only a deep and broad knowledge of existing efforts can pave the way to the publication of widely-accepted future Cloud standards, this chapter aims at putting together current trends and open issues in Cloud standardization to derive an original and holistic view...
Collaborative Services for Fault Tolerance in Hierarchical Data Grid
B. Meroufel, G. Belalem.
As fault tolerance is the ability of a system to perform its function correctly even in the presence of faults. Therefore, different fault tolerance techniques are critical for improving the efficient utilization of expensive resources in high performance data grid systems. One of the most popular...
Discovering Complex Relationships of Drugs over Distributed Knowledgebases
Juan Li, Ranjana Sharma, Yan Bai.
Drug discovery is a lengthy, expensive and difficult process. Indentifying and understanding the hidden relationships among drugs, genes, proteins, and diseases will expedite the process of drug discovery. In this paper, we propose an effective methodology to discover drug-related semantic...
Service-Oriented Development of Workflow-Based Semantic Reasoning Applications
Alexey Cheptsov, Stefan Wesner, Bastian Koller.
The modern Semantic Web scenarios require reasoning algorithms to be flexible, modular, and highly-configurable. A solid approach, followed in the design of the most currently existing reasoners, is not sufficient when dealing with today's challenges of data analysis across multiple sources of...