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Cloud radio access network (CRAN) has been proposed as a potential energy saving architecture and a scalable solution to increase the capacity and performance of radio networks. The original CRAN decouples the digital unit (DU) from radio unit (RU) and centralizes the DUs. However, stringent delay and bandwidth constraints are incurred by fronthaul in CRAN, i.e. the network segment connecting RUs...
Emerging fog and mobile edge computing paradigms will create distributed pervasive virtualization environments, where computing, storage, and networking resources will be deployed at the network boundary in a capillary way. To effectively tackle the large dynamic fluctuations in workload engendered by user-centric services, effective energy management schemes must be in place to modulate power consumption...
The application of effective energy management strategies in data centers is often hindered by the substantial conflict between the interests of cloud users and infrastructure owners. As a matter of fact, cloud users require that the service level they are paying for is tightly met, whereas data center owners try to cut down their operational expenses. In this paper, we propose a novel consolidation...
In this study we provide an economic analysis of the energy consumption savings obtained by introducing research results of the European project CONVINcE for Video On Demand and Video “over the top” (OTT) services. This should allow positioning quantitatively possible savings in the end-to-end chain, including service suppliers (head-ends), networks and customers (terminals). The key performance indicator...
The cloud computing paradigm has recently emerged as a convenient solution for running different workloads on highly parallel and scalable infrastructures. One major appeal of cloud computing is its capability of abstracting hardware resources and making them easy to use. Conversely, one of the major challenges for cloud providers is the energy efficiency improvement of their infrastructures. Aimed...
Power consumption is a primary concern for cloud computing data centers. Being the network one of the non-negligible contributors to energy consumption in data centers, several architectures have been designed with the goal of improving network performance and energy-efficiency. In this paper, we provide a comparison study of data center architectures, covering both classical two- and three-tier design...
Mobile Cloud Computing is a very important trend nowadays. It merges the cloud computing technologies with mobile devices to overcome the limitations of these devices such as limited battery life time, limited processing and storage capabilities. The tasks that need massive computations can be performed on the cloud efficiently and the results will be sent back to the mobile device, this way, the...
Ultra-dense deployment of radio access points is a key enabler for future 5G networks. It allows the network to cope with the ever increasing mobile data traffic. In addition, these radio access points can serve as an infrastructure for a local mobile cloud computing platform referred to as fog computing. The fog is a capillary edge cloud that enables joint optimization of communication and computational...
The main objective of deploying large scale Mobile Cloud Computing (MCC) systems using the cloudlet based infrastructure is to reduce the total power consumption and the network delay while satisfying the Service Level Agreement (SLA). However, this objective is challenging to achieve due to the limited capabilities of the cloudlet system which limit the number of available services on each cloudlet...
By 2020, next generation (5G) cellular networks are expected to support a 1000 fold traffic increase. To meet such traffic demands, Base Station (BS) densification through small cells are deployed. However, BSs are costly and consume over half of the cellular network energy. Meanwhile, Cloud Radio Access Networks (C-RAN) has been proposed as an energy efficient architecture that leverage cloud computing...
A system architecture with high-density general purpose graphic processing unit (GPGPU) is emerging as a promising solution that can offer high compute performance and performance-per-watt for building cluster supercomputers. The raw compute power of these heterogeneous systems greatly exceeds the current prevailing homogenous systems, motivating their rapid adoption. These heterogeneous systems do...
Traditionally, the primary focus of datacenter and network designers has been on the performance improvement and high system throughput. Energy consumption has been rarely a design consideration. But in the recent years, the ICT sector has grown exponentially and many studies, on energy consumption of datacenters, reveal that there is requirement of developing new mechanisms, for using energy efficiently...
In this paper, we develop a game theoretic formulation for empowering cloud enabled HetNets with adaptive Self Organizing Network (SON) capabilities. SON capabilities for intelligent and efficient radio resource management is a fundamental design pillar for the emerging 5G cellular networks. The C-RAN system model investigated in this paper consists of ultra-dense remote radio heads (RRHs) overlaid...
The emerging Network Function Virtualization paradigm (NFV) is a disruptive change that creates new business opportunities for vendors and carriers. By exploiting virtualization technologies, it allows the dynamic creation of logically isolated infrastructures over abstracted physical networks. To be able to offer Virtualized Services efficiently, service providers need a new class of Management systems...
Energy efficiency has become one of the major design constraints for current and future cloud infrastructures. One way to conserve energy is to transition idle clusters, network elements and servers into low-powerstates. Therefore, Virtual Machine placement and dynamic re-configuration algorithms have beenrecently proposed for increasing the energy efficiency of virtualized infrastructures. However,...
The article focuses on the energy efficiency issue and the negative impact on the environment of Cloud computing based on data centers infrastructure. A modernization of Cloud architecture in terms of Green computing is proposed, using FPGA hardware accelerators and distributed peer-to-peer networks. Customer and FPGA as a Service (FAAS) interaction scenarios are discussed. A distributed peer-to-peer...
Cloud computing will be a major technology in the development of the future Internet of Services. Service providers want to remove the bottle neck of the cloud computing system in order to satisfy user requirement. And in order to save energy consumption they also need to apply new energy-efficiency mechanism and observe its effects on a data center. As it is difficult to test new mechanism in real...
Recently, power consumption of radio access networks (RAN) has attracted a lot of attention since energy cost takes up a vast portion of operational expenditure (OPEX). Specifically, more than half of the energy is consumed by base stations (BS). Baseband Unit (BBU), which is responsible for baseband signal processing, is an important part of BS, and BBU consolidation in the form of a cluster is an...
In this paper, we investigate cooperative architectures and cloud formation mechanisms within the concept of mobile clouds, where multi-standard multi-radio devices in close proximity communicate to each other over short-range radio links while preserving connectivity to the overlay cellular network. Four architecture approaches are considered, namely a central cellular controlled, a cloud leader...
Open Source Private Cloud (OSPC) is a full stack of private cloud solution based on Open Stack to help user enable and manage private cloud environment. Intel Intelligent Power Node Manager is a platform resident technology with power and thermal policies. In this paper, we introduce how to manage power in cloud computing effectively by integrating Intel Node Manager with OSPC and define this resolution...
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