Showing papers in "Computer Networks in 2014"

TL;DR: A top-down survey of the trade-offs between application requirements and lifetime extension that arise when designing wireless sensor networks is presented and a new classification of energy-conservation schemes found in the recent literature is presented.

TL;DR: The IoT experimentation facility described in this paper is conceived to provide a suitable platform for large scale experimentation and evaluation of IoT concepts under real-life conditions to influence the definition and specification of Future Internet architecture design.

TL;DR: The concurrent deployment of these technologies on regional and national R&E backbones will result in a revolutionary new national-scale distributed architecture, bringing to the entire network the shared, deeply programmable environment that the cloud has brought to the datacenter.

TL;DR: This paper surveys the state-of-the-art in traffic engineering for SDNs, and mainly focuses on four thrusts including flow management, fault tolerance, topology update, and traffic analysis/characterization.

TL;DR: This paper compiles information about different communication network requirements for different smart grid applications, ranging from those used in a Home Area Network, Neighborhood Area Network and Wide-Area Network, to serve as a comprehensive database of technology requirements and best practices for use by communication engineers when designing a smart grid network.

TL;DR: This paper proposes a modular architecture for the separation of the data collection process from the SDN control plane with the employment of sFlow monitoring data and presents experimental results that demonstrate the effectiveness of the proposed sFlow-based mechanism compared to the native OF approach, in terms of overhead imposed on usage of system resources.

TL;DR: This paper focuses on network topology management techniques for tolerating/handling node failures in WSNs and two broad categories based on reactive and proactive methods have been identified for classifying the existing techniques.

TL;DR: In this article, the benefits of using SDN in a multitude of environments such as in data centers, data center networks, and Network as Service offerings are described, and various challenges facing SDN, from scalability to reliability and security concerns, and discuss existing solutions to these challenges.

TL;DR: This paper surveys existing technologies and the wide range of recent and state-of-the-art projects on SDN followed by an in-depth discussion of the major challenges in this area.

TL;DR: It is shown that, with respect to human trajectories, the linear interpolation offers the best estimation for sedentary people while the cubic one for commuters, and that trajectory estimation methods show different error regimes whether used within or outside the ''territory'' of the user defined by the radius of gyration.

TL;DR: The four-phased deployments and demonstration of new networking capabilities enabled by SDN played an important role in maturing SDN and its ecosystem and the experiences and lessons learned are shared.

TL;DR: A general principle is put forward: Public-key techniques are intrinsically indispensable to construct a two-factor authentication scheme that can support user anonymity, and can be applied to two-Factor schemes for universal environments besides WSNs, such as the Internet, global mobility networks and mobile clouds.

TL;DR: The Cloud Computing architecture and its applications for Smart Grid applications are introduced in terms of efficiency, security and usability, and existing Smart Grid projects and open research issues are presented.

TL;DR: A new type of controller state synchronization scheme, Load Variance-based Synchronization (LVS), is proposed to improve the load-balancing performance in the multi-controller multi-domain SDN net- work and achieves loop-free forwarding and good load- Balancing performance with much less synchronization overhead, as compared with existing schemes.

TL;DR: This paper examines the applicability of CCN principles to wireless networks with distributed access control, different degrees of node mobility and resource constraints, and provides some guidelines for readers approaching research on CCN, by highlighting points of strength and weaknesses and reviewing the current state of the art.

TL;DR: Both completed and ongoing developments in the PLC technologies and their worldwide implementations are reviewed and new protocols and standards proposed for PLC are reviewed to see possible solutions toward its standardization.

TL;DR: Simulation results show that DRIVE performs data dissemination with better efficiency than other algorithms, outperforming them in different scenarios in all the evaluations carried out.

TL;DR: A Time-To-Live (TTL) based caching model, that assigns a timer to each content stored in the cache and redraws it every time the content is requested (at each hit/miss), is introduced.

TL;DR: A priority-based application-specific congestion control clustering protocol, which integrates the mobility and heterogeneity of the nodes to detect congestion in a network and achieves better performance in terms of the network lifetime, energy consumption, data transmission, and other QoS metrics compared with existing approaches.

TL;DR: The results of several Cloud QoE studies performed for different Cloud-based services, ranging from services with low requirements in terms of latency and interactivity to highly interactive services, provide a ground truth basis for developing future Cloud services withQoE requirements, as well as for dimensioning the underlying network provisioning infrastructures, particularly with regard to mobile access technologies.

TL;DR: The OFELIA testbed as discussed by the authors is a multi-layer, multi-technology and geographically distributed Future Internet testbed facility, where the network itself is precisely controlled and programmed by the experimenter using the emerging OpenFlow technology.

TL;DR: This paper revisit existing end-to-end security standards and key establishment schemes and discusses their limitations considering the specific scenarios of the IoT and proposes novel collaborative approaches for key establishment designed to reduce the requirements of these existing security protocols.

TL;DR: This paper proposes a consensus protocol for the cooperation among network objects in performing the target application, which aims to distribute the burden of the application execution, so that resources are adequately shared and demonstrates that the network converges to a solution where resources are homogeneously allocated among nodes.

TL;DR: It is argued that continuous effort is needed in improving network-monitoring since the presented problems will become even more serious in the future, as networks grow in size and carry more data.

TL;DR: This work describes and survey ongoing research and identifies challenges in the modeling, design and analysis of information-centric networks and protocols, with a particular focus on content flowing through a network of caches.

TL;DR: This work first conducted a systematic literature review to identify available data dimensions and integrated them into a conceptual framework, and adopted this framework as part of a mixed methods research approach to comprehensively analyze an empirical ESN case.

TL;DR: This work designs an efficient data-gathering system in wireless sensor networks (WSNs) with mobile agents to achieve energy- and time-efficient collection as well as intelligent monitoring to adapt to the numerous demands of users.

TL;DR: Three possible solutions for the interconnection of ubiquitous, heterogeneous objects and the generation of applications allow inexperienced people to interconnect them are presented: a Domain Specific Language capable of abstracting the application generation problem; a graphic editor that simplifies the creation of that DSL; and an IoT platform able to inter connect different objects between them.

TL;DR: This work proposes a classification of previous work under two dimensions: types of approaches with respect to resource provisioning devices and adopted strategies for three main technical issues for DOSN (decentralizing storage of content, access control and interaction/signaling), and points out advantages and limitations of each approach.

TL;DR: This work proposes a new system architecture for mobile cloud computing that includes a middle layer sitting between mobile devices and their cloud infrastructure or clones that is composed of cloudlets, and introduces a data caching mechanism at cloudlets to further improve the overall MCC performance.