Review and analysis of networking challenges in cloud computing

Abstract

Cloud Computing offers virtualized computing, storage, and networking resources, over the Internet, to organizations and individual users in a completely dynamic way. These cloud resources are cheaper, easier to manage, and more elastic than sets of local, physical, ones. This encourages customers to outsource their applications and services to the cloud. The migration of both data and applications outside the administrative domain of customers into a shared environment imposes transversal, functional problems across distinct platforms and technologies. This article provides a contemporary discussion of the most relevant functional problems associated with the current evolution of Cloud Computing, mainly from the network perspective. The paper also gives a concise description of Cloud Computing concepts and technologies. It starts with a brief history about cloud computing, tracing its roots. Then, architectural models of cloud services are described, and the most relevant products for Cloud Computing are briefly discussed along with a comprehensive literature review. The paper highlights and analyzes the most pertinent and practical network issues of relevance to the provision of high-assurance cloud services through the Internet, including security. Finally, trends and future research directions are also presented.

Ensuring Security and Privacy for Cloud-based E-Services

“…IaaS provides computation and storage through virtualization using frameworks such as Amazon EC2, where the customer does not manage or control the underlying cloud infrastructure but has control over operating systems, storage, and deployed applications; and possibly limited control of select networking components (e.g., host firewalls) [12], [11], [16].…”

“…Cloud computing (CC) has received a great attention by individuals and societies, the demand for it has been increasing for the last decade [23], [11]. Cloud computing was defined by the National Institute of Standards and Technology (NIST) as a "model for enabling ubiquitous, convenient, ondemand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction" [12].…”

“…[11], considered that CC refers to computing services provided within the cloud infrastructure and accessed by customers' demand and needs, without the consideration of details of the service provisioning. While Zissis and Lekkas stated that the CC is empowered by virtualization technology, which provides the critical cloud characteristics of location independence, resource pooling, and rapid elasticity [25].…”

“…Cloud Services is providing by diverse mobile operators (e.g. AT&T, DT, MT), and technological enterprises (Google, Microsoft, Amazon, Dropbox, Salesforce) based on their network and computing infrastructure [11], where their resources and services are utilized based on customer's demand [23].…”

Internet of Things–based smart home system using a virtualized cloud server and mobile phone app

“…Due to its low cost, high speed and good stability, a cloud server can easily perform network administration and manage data transmission from sensors to servers. 3 In general, elements of the global IoT are broadly categorized into sensor, network and data processing. The sensor, an important device, captures useful information, which is transmitted through the network layer to the cloud server immediately and stored there.…”