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With advances in the information and communication technology (ICT), connected vehicles are one of the key enablers to unleash intelligent transportation systems (ITS). On the other hand, the envisioned massive number of connected vehicles raises the need for powerful communication and computation capabilities. As an emerging technique, fog computing is expected to be integrated with existing communication...
Geo-distributed mobile cloud computing takes location information into consideration in mobile cloud computing. Users can access cloud resources that are geographically close to their mobile devices in Geo-distributed mobile cloud computing to reduce communication delay. Considering the uncertainty requirement of mobile users, in this paper, we focus on resource sharing through cooperation among cloud...
This paper presents an adaptive service management mechanism that maintains service level agreement through use of overlay networks that are deployed over the cloud provider network. The application autonomic manager strives to maintain the SLA without provisioning new resources for as long as possible. Through continuous monitoring and analysis, autonomic manager uses software defined networking...
Lately application service providers (ASPs) and Internet service providers (ISPs) are being confronted with the unprecedented challenge of accommodating increasing service and traffic demands from their geographically distributed users. Many ASPs and ISPs, such as Facebook, Netflix, AT&T and others have adopted micro-service architecture to tackle this problem. Instead of building a single, monolithic...
Cloudlet based network provides a platform to offloading the traffic workload generated by mobile devices. It can significantly reduce the access delay for mobile application users. However, the high dynamic mobility of users brings significant challenges to the service provisioning for mobile applications, especially for the delay-sensitive big data applications. To increase the overall admitted...
Network function virtualization (NFV) has been emerging as a new paradigm to enable elastic and inexpensive network services in modern computer networks, through deploying flexible virtualized network functions (VNFs) running in virtual computing platforms. Different VNFs can be chained together to form different service chains, to meet various user data routing demands for different network services...
An increasing number of online services are hosted on public clouds. However, since a centralized cloud architecture imposes high network latency, researchers suggested moving latency sensitive applications, such as virtual and augmented reality ones, to the edge of the network. Nevertheless, little has been done for edge layer capacity estimation resulting in a great need towards practical tools...
Fog computing is seen as a promising approach to perform distributed, low-latency computation for supporting Internet of Things applications. However, due to the unpredictable arrival of available neighboring fog nodes, the dynamic formation of a fog network can be challenging. In essence, a given fog node must smartly select the set of neighboring fog nodes that can provide low-latency computations...
This article presents a new model and a resolution algorithm, based on Tabu Search, for the assignment of Virtual Machines (VMs) to servers in a data center. We propose a Mixed Integer Programming (MIP) model that optimizes the Quality of Service (QoS) and power consumption of applications, taking into account their communication traffic and dynamic aspects. A hierarchic method and a Tabu Search heuristic...
In the large-scale Wireless Metropolitan Area Network (WMAN) consisting of many wireless Access Points (APs),choosing the appropriate position to place cloudlet is very important for reducing the user's access delay. For service provider, it isalways very costly to deployment cloudlets. How many cloudletsshould be placed in a WMAN and how much resource eachcloudlet should have is very important for...
Mobile cloudlet has recently received considerable attentions in mobile cloud computing because of its reduction in energy consumption and communication latency. It faces, however, two major challenges: first, its mobility path could significantly affect mobile application services it can offer to other mobile devices; second, its resources are very limited including its battery capacity. In this...
This paper proposes an efficient interactive model for sensor-cloud integration to enable the sensor-cloud to provide on-demand sensing services for multiple applications with different latency requirements at the same time. In the model, we design an aggregation mechanism for the sensor-cloud to aggregate application requests so that workloads required for constrained sensor nodes are minimized to...
In this paper, we proposed a novel locally semi-stand alone Smart Virtual evolved Base Station (SVeNB), for 5G mobile communication. Where some functions of system Evolved Packet System (EPS) elements can be done with SVeNB. According to the type of function or service and the device, which is used to fulfil that function or service. These elements can be virtualized and programmed in one Virtual...
Edge Computing, as a solution to leveraging computation capabilities at the edge of the network, is emerging. One key challenge for edge computing is offering its computing service with a low service blocking and low latency that otherwise translate to an inefficient deployment of a Edge computing system. Unlike cloud computing, the computing resources in edge computing are limited. One way to deal...
As a potential candidate architecture for 5G systems, cloud radio access network (CRAN) enhances the system's capacity by centralizing the processing and coordination at the central cloud. However, this centralization imposes stringent bandwidth and delay requirements on the fronthaul segment of the network that connects the centralized baseband processing units (BBUs) to the radio units (RUs). Hence,...
5G, fog computing and the majority of the latest technological trends have minimized latency as a top priority. These initiatives are focusing on physical layer methods to decrease latency, thus keeping the changes transparent to users. Physical layer changes are expensive and in many cases incompatible with the original solution which results in lower adoption rate and higher capital investment....
In this paper, we investigate the joint admission control and resource allocation problem for collaborative computation under fading channels. We develop an Internet-of-Things (IoT) framework in which establishing Device-to-Device (D2D) communications, resource-poor wearable Source Mobile Terminals (SMTs) may offload their computations to resource-rich Processing Mobile Terminals (PMTs), or execute...
Video streaming and computer games are among the most popular and highest bandwidth consuming media in the Internet. Video contents consume around 70% of the total bandwidth usage in the Internet today. Advancements in media generation tools, high processing power, and high speed connectivity have enabled generation of live, interactive, multi-view media generation. Cognitive assisted and online multi-player...
Edge Computing is a fast growing field of research covering a spectrum of technologies such as Cloudlets, Fog Computing and Mobile Edge Computing (MEC). Edge Computing involves technically more sophisticated setup when compared with the pure Cloud Computing and pure Mobile Computing cases since both computational and network resources should be considered simultaneously. In that respect, it provides...
In recent years, computation-intensive mobile applications are rapidly developed such as Augmented Reality(AR), which will become one of the most popular services. However, mobile devices are resource-limited in memory, bandwidth and process capacity. To relieve the computation burden of mobile devices, computation offloading appears. Offloading computation to remote cloud can take advantage of the...
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