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In recent years, Vehicular Ad hoc Networks (VANETs) has been emerged an enabling technology to provide a wide range of applications for safety and convenience of drivers. However, traditional architecture of VANETs lack of flexibility, scalability, and easy deployment of services. In this context, Software-defined networking (SDN) has emerged as a rapid innovation in the area of networking for both...
This paper presents the high-level architecture (HLA) of the research project DEWI (dependable embedded wireless infrastructure). The objective of this HLA is to serve as a reference for the development of industrial wireless sensor and actuator networks (WSANs) based on the concept of the DEWI Bubble. The DEWI Bubble is defined here as a high-level abstraction of an industrial WSAN with enhanced...
Wireless Sensor Networks (WSNs) are used in many application areas including health, agriculture and gaming. New advances in sensor technology make it pertinent to consider sharing a deployed WSN infrastructure by multiple applications, including applications which are designed after the WSN deployment. For my PhD research I propose a novel WSN virtualization framework that allows multiple users to...
Cloud-based machine-to-machine communications emerge to facilitate services through linkage between cyber and physical worlds. In addition to great challenges in a large network of machine/sensor swarm, effective network architecture involving interconnection of wireless infrastructure and multi-hop ad hoc networking in the machine swarm remains open. Inspired by the small-world phenomenon in social...
Research in the area of Wireless Sensor Networks (WSNs) has become more and more driven by real-world experimental evaluations rather than network simulation. Numerous testbeds of WSNs have been set up in the past decade, often with very much differing architectural design and hardware. The Testbed Management Architecture for Wireless Sensor Networks (TARWIS) presented in this paper provides the most...
The cloud represents a computing paradigm where scalable virtualized resources are provided ``as a service'' over the Internet. Mobile/wireless clouds of seamlessly integrated wireless networks is the latest technology trend. Moving the ``Test bed as a Service'' notion to the wireless cloud, enables ordering of user slices for experimentation on wireless test beds, scattered across multiple, federated,...
The Internet of Things (IoT) is the paradigm of inter connecting heterogeneous devices which are distributed globally and will be a part of the future Internet. Wireless Sensor Networks (WSN) are one of the integral classes of networks in the IoT. One of the major challenges to achieve IoT is to integrate and manage large heterogeneous networks. Autonomic network management system is the need of the...
Wireless sensor network is an effective way to dynamic and real-time monitoring highway disaster because of its large number, high-density and real-time communication features. this article first analyzes the basic issues about wireless sensor network technology used to highway disaster monitoring. Then, a hierarchy wireless sensor networks based on intelligent collaborative highway disaster monitoring...
The direction of cross-layer wireless research has been prominently bottom-up, i.e., optimizing higher layer protocols based on the characteristics of the underlying wireless communication medium. Though this approach has been essential for efficient use of scarce wireless connectivity and bandwidth, there is a recent trend for massive availability of wireless resources through initiatives such as...
This paper presents a conceptual framework of an electric power microgrid with a distributed control architecture comprising a sensor network of hierarchical agents. The salient sensory features of the different constituent types of intelligent agents are presented. The concept of a minimal microgrid is introduced for the purpose of defining the microgrid architecture. Inroads leveraging the state-of-the-art...
As a novel information acquiring and processing technology, WSN (wireless sensor network) is made by the convergence of sensor, micro-electro-mechanism system and networks technologies. WSN consist of small nodes with sensing, computation and wireless communication capabilities. Various architectures have been developed for WSN, depending upon the requirement of application. WSN are used in different...
In this paper, we proposes a cognitive cross-layer architecture for the cognitive ad hoc networks, where each node in the networks can sense and learn from wireless environment, network environment and user's requirements, and then it will respond the changes of environment by adapting system parameters and network services based on the learned results. In this way, it can provide the end-to-end goals...
In this paper, a cluster based hybrid architecture is proposed which not only combines the advantages of both cluster and flat architecture, but also introduces how to use multiple communication models in wireless sensor networks(WSNs). Furthermore, the hybrid architecture uses multicast to solve the problem of ldquobroadcast blastrdquo, and adopts deployment of heterogeneous sensors to solve the...
OCARI is a wireless communication technology targeting applications in harsh environments such as power plants and warships. It supports mesh topology and provides a deterministic MAC access for time-constrained communications as well as energy efficient communications for an increased network lifetime. Based on the PHY layer of IEEE 802.15.4, it supports the ZigBee APS and APL primitives and profiles,...
Wide area ubiquitous networks should have the capability to handle more than 10,000 wireless terminals in a large wireless cell with the radius of several kilometers. However, the functions of wireless terminal are severely limited due to low power consumption and low cost requirements. Therefore, there is a need for a sophisticated wireless access system that employs smart wireless signal processing...
In this work we present the development and proof of concept testing of a protoype wireless e-nose (w-nose) architecture capable of mesh shaped networking. The proposed w-nose is based on a TelosB by Crossbow Inc. and custom, power aware, TinyOS based components for data gathering and local processing. Sensor nodes are equipped with a small array of nonconductive polymer/CB based chemiresistors operating...
To solve the energy efficiency problem in the wireless sensor networks(WSNs), a fixed clustering hierarchy arithmetic based on energy prediction (FCHEP) was presented. Taking use of the signal intensity of sensor nodes to form an autonomic cluster, the cluster-head node could predict the remaining energy of nodes in the cluster by the state diversion module, hence, the node with highest remaining...
We propose a novel distributed cross-layer optimization approach for cognitive radio wireless networks. A cognitive radio is a wireless device that is capable of sensing the prevailing environmental conditions and automatically adapting its operating parameters in order to enhance the performance of both the system and potentially the whole network. Given the lack of a centralized intelligence to...
Anonymity has received increasing attention in the literature due to the users' awareness of their privacy nowadays. Anonymity provides protection for users to enjoy network services without being traced. While anonymity related issues have been extensively studied in payment-based systems such as e-cash [1] and peer-to-peer (P2P) [2] systems, little effort has been devoted to wireless mesh networks...
To enhance the preparedness of federal and state agencies to effectively manage federal or state recovery efforts in response to a broad spectrum of emergencies, we propose a hybrid adaptive network that will adopt currently available off-the-shelf wireless network devices and integrate them quickly into a scalable, reliable, and secure network with a minimum of human intervention for configuration...
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