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The recent enhancement of sensor devices, such as the Micro-Electro Mechanical Devices (MEMs) used for information collection and dissemination, has led to the emergence of the Internet of Things (IoT). This new paradigm overlaps with many research area such as the Wireless Sensor Networks (WSNs) where sensor nodes are deployed over an area to perform local computations based on information gathered...
Low-Power Wide-Area networks promise to deliver limited IoT payloads reliably at distances in excess of 10 km raising the possibility of thousands of IoT devices connected to a single base station. PlanIt is a web application able to visualize connectivity in these large-scale deployments prior to deploying hardware or even making a single signal-strength measurement. DQ-N is an adaptation of distributed...
Delay tolerant networks (DTN) are characterized by lack of end-to-end communications and stable infrastructures. This paper deals with DTN networks consisting of a number of heterogeneous mobile fishing vessels where some nodes, referred to as adaptive nodes, are capable of communicating through long-range Wi-Fi whereas other nodes are having simple Wi-Fi access network. The nodes form different clusters...
Underwater wireless communication is used to obtain information in various studies such as marine resources and disaster prevention. However, standards relating to security and authentication protocol for the Underwater Wireless Sensor Network (UWSN) are incomplete. In this paper, we analyze selected tickets used in the authentication protocol for the Wireless Sensor Network (WSN) and design a suitable...
In this paper, a cognitive machine-to-machine (M2M) communication network is considered, in which a cellular network shares the spectrum with the M2M communication network with M machine-type devices (MTDs), one half-duplex relay, and one MTD gateway for data gathering. One key challenge is that in the future 5G wireless networks, there will be billions of those small MTDs, and therefore, a MTD selection...
Internet of Things (IoT) is an enhanced technology to extend the functionality of current WSNs from local to remote and from a small or large scale to a global scale. There are three solutions of integrating WSNs with the Internet including Front-End Proxy solution, Gateway solution and the TCP/IP Overlay solution. Every single solution has its own features and successful applications. In this paper,...
This paper describes the open-source software toolchain developed by the Underwater Systems and Technology Laboratory (LSTS) for supporting networked heterogeneous air and ocean vehicle systems. The toolchain supports the deployment of air and ocean vehicles interacting over limited acoustic and wireless networks combined with disruption-tolerant networking protocols. We present the different components...
Wireless sensor network consists of a set of tiny sensor nodes. The nodes are continuously sense and transmit the data to the base station. Therefore, energy consumption and network coverage are important issues to improve the life time of the network. Clustering architecture is an effective architecture to reduce the energy consumption. The main aim is to increase network lifetime as well as increase...
Wireless sensor nodes are resource constrained and have limited amount of energy. Therefore, designing protocols that conserve energy is an important area of research. Researchers have investigated architectures and topologies that allow energy efficient operation of WSNs. One of the popular techniques in this regard is clustering. The different methods of node clustering techniques have appeared...
Society of 3rd Generation Partnership Project (3GPP) is presently evolving Long Term Evolution Advanced (LTE-Advanced) as a development of the standard of LTE. This generation aims to produce specifications for a new radio-access technology geared to higher data rates, low latency and greater spectral efficiency. LTE-Advanced is an evolutionary step in the continuing development of LTE where the description...
The deployment of wireless sensor networks in many application areas requires self organization of the network nodes into clusters. The clustering Algorithm is a kind of key technique used to reduce energy consumption. Efficient way to enhance the lifetime of the system is to partition the network into distinct clusters with a high energy node as cluster head. The different methods of node clustering...
Wireless Sensor Networks (WSNs) are being used in a variety of applications including environmental monitoring, event detection, object tracking, and healthcare applications. Network management of WSNs is one of the key practical challenges that arise from the increasing number of applications and technologies deployed. This work presents a web-based integrated network and data management system that...
6LoWPAN opens a great opportunity for wireless sensor networks (WSNs) to be operated from the Internet. However, 6LoWPAN requires a gateway in order to make the use of IPv6 feasible inside the WSN. In this paper, a gateway is designed and constructed to interconnect 6LoWPAN wireless sensor networks with IPv6 clients, enabling them to receive sensor nodes readings or send commands to the 6LoWPAN WSN...
Today, many kinds of companies with different activities are set around the world. The quantity of information involved therefore has exploded in the sites of information. In the network architecture, information is commonly shipped on mobile sites with potential storage and processing. Several validation protocols were proposed for validating the transactions in the mobile environments. On the one...
As nodes appear and disappear in a Wireless Sensor Network (WSN), communication protocols acting in the data link, network and transport layers adapt dynamically to the new network structure. We present an extension of the dynamic nature of WSNs to the web via an adaptive communication protocol called the adaptive Sensor Web Language (SWL). Adaptive SWL provides a web application with a reliable mechanism...
Recently, Sensor network have gained popularity for a variety of applications such as patient monitoring, military sensing and tracking, etc. When performing monitoring tasks in hostile environments, security requirements become vital important due to the vulnerability of various attacks. Contemporary wireless sensors have limited battery, computation and memory capacity. The energy-constrained nature...
Wireless sensor network (WSN, Wireless Sensor Network) is a kind of autonomous network with sensor nodes. It is different from traditional RFID system that the WSN is through the distribution of sensor nodes in different locations to monitor environmental conditions. The collected data from sensor nodes were sent back to the base station for further analysis and processing to compensate the shortage...
A novel method to improve the reliability of data collection in wireless sensor networks is presented. The Disseminated ACKnowledgment protocol (DACK) builds on collection and dissemination protocolsto provide end-to-end acknowledgement of data samples. A DACK protocol implementation was tested using simulations and experiments on TelosB motes running TinyOS 2.1. Experiments were carried outon three...
Expectation and requirements for future wireless communication systems continue to grow and evolve. Long-Term Evolution (LTE) is a recent effort taken by cellular providers and equipment vendors to step into wireless broadband market. The key enhancements target an introduction of new all-IP architecture, enhanced link layer and radio access. In LTE, one of the recurring problems is the bottlenecked...
For adopting wireless sensor network in consumer networks, easy configuration and standard based interoperable operations are important. General device-controller approach in service discovery protocols like UPnP allows sensor networks to be discovered and accessed as general UPnP devices via gateways. However, users also need standard capability information that fully describes sensor types, attributes,...
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