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In this article, we consider software-defined wireless sensor networks (SDWSNs) and propose a scheme for sleep scheduling with low control overhead-based flow-entry in flow-table to overcome the limitation of control traffic in SDWSNs.
Wireless Sensor Networks has evoked a lot of attention in recent years as it offers a broad horizon of applications in environmental monitoring. Security of such networks is a key area of research as traditional techniques cannot be employed due to their low energy and memory constraints. The cornerstone of security primitives in cryptography is a key exchange. In this paper Elliptic Curve Cryptography...
Wireless Sensor Networks have been an active area of research owing to its myriad range of applications. Traditional security protocols are not feasible for such networks due to their resource constraint nature. However, ECC has been considered as a viable cryptographic technique due to its low computational overhead. In this paper study and application of ECC on a popular WSN operating system, TinyOS,...
Convergecast, the process of data collection from set of sensor nodes and forwards to the sink node over a tree based topology is a fundamental traffic pattern in Wireless Sensor Networks(WSN). Time Division Multiple Acess(TDMA) protocol is considered for scheduling, where time is divided into slots. The main aim of this paper is to reduce the number of time slots (scheduling length) using different...
WSN(Wireless sensor network) depicted as an emerging technology, with its potential applications in the field of territory monitoring and industrial applications. The sensors employed in the surrounding environment will monitor the physical attribute changes such as temperature, humidity, etc. and makes notice of the data being gathered and delivers the gathered information to the (BS) base station...
Protection of network is the most challenging issue for preventing the harmful types of attacks and poses security issue in WSN along with information security application domains. Some of the architectures and guidelines are proposed to protect Wireless Sensor networks (WSN) against different attacks done by intruders. WSN has large variety of applications that includes mass public, military and...
The energy harvesting is the branch of the energy management, where the energy is being originated from the multiple sources. The energy harvesting is usually done from the sources such as wind mills, solar cells, piezoelectric and other similar power generation modules. In this paper, the energy harvesting methods are discussed for the wireless sensor networks. The wireless sensor networks are the...
In WSN there is always a scope of improvement in efficient energy utilization, network lifetime. Efficient energy utilization always seems to be an important aspect in WSN's. Because of the fact that energy consumption directly effect the overall performance of WSN. Numbers of protocols are designed for enhancement of network lifetime and prevent the batteries from earlier drainage. Most of the protocols...
Internet of things makes use of devices by setting up a connection for providing a means of communication. These devices include the sensor nodes of wireless sensor network. We need to aggregate the data of various sensor nodes for making decisions or analysis or controlling purpose. In this research paper, I am proposing a method call MHCDA for aggregating the data of wireless sensor network. For...
In wireless sensor networks (WSNs), energy is dissipated mainly when sensors are communicating with sinks. As a result, multiple sinks are deployed in the network in order to increase its coverage area and shorten the communication distance between these two entities. This raises the issue of how best to bind sensors to sinks without overloading any sink. In this paper, we solve the sensor-to-sink...
Wireless Sensor and Actuator Networks (WSANs) are highly heterogeneous regarding hardware, software, and application requirements. Developing WSAN applications is a hard task, as it requires domain and network knowledge and there is a lack of methodologies, architectures, and patterns to help software developers with such task. Moreover, non-functional requirements play an essential role to ensure...
In a Wireless Sensor Network (WSN), significant amount of data flows through the nodes near the sink, than the nodes away from the sink. As a result, the limited energy available with the nodes around the sink becomes a bottleneck in the performance of the WSN. The nodes in the bottleneck zone determines the lifetime of the WSN. So, there is a need to investigate the effect of the size of the bottleneck...
Localisation defines the process of determining the topographical location of sensor nodes in wireless sensor network. Current localisation method is space oriented which adopts GPS (Global Positioning System) signal to yield the location information of the nodes. The GPS signals are suited for outdoor environments, however they fail to work indoors, which makes the need to opt for terrestrial localisation...
With WSN technologies becoming more reliable, sophisticated and more capable of meeting the demands of market opportunities and with its broad applications and new emerging trends like: internet of things and integrated web-based services, there still a need for developing protocols to manage and improve coherence and consolidation of the network. Video sensing can be involved in most of the WSN applications...
WSNs are gradually penetrating all spheres of security, industry and civil sectors. Since the very inception of the concept, a need for enhancing energy efficiency and longevity of the networks is felt. Routing protocols designed for WSNs have evolved over the years in order to serve this purpose better. This paper summarizes the concerns of a WSN and discusses how these were addressed through innovations...
Wireless Sensor Network (WSN) is most integral part of our day to day life. They are widely used in various applications. Many Clustering based algorithms have been proposed for designing WSN. Some of them are fuzzy based approaches. The purpose of this paper is to propose a clustering based approach with fuzzy logic and relay node implementation that can cope up with drawbacks of the previously proposed...
Sustainability of old buildings is constantly challenged due to its non-compliance with energy saving practices. Old buildings which aim to deploy technologies to improve thermal comfort face some infrastructure constraints. The sustainability of such buildings is dependent on occupant's thermal comfort, low carbon emissions and reduced energy consumption. Such buildings face restraints in the way...
Wireless sensor networks (WSNs) consist of many sensors working as hosts. These sensors can sense a phenomenon and represent it in a form of data. There are many applications for WSNs such as object tracking and monitoring where the objects need protection. Providing an efficient location privacy solution would be challenging to achieve due to the exposed nature of the WSN. The communication protocol...
In this paper, we present the Context-Aware Opportunistic Resource-Based Routing Protocol (CORB) for intermittently-connected stationary wireless sensor networks. This protocol targets domains such as ambiance control in smart buildings. Unlike existing context-aware routing approaches which consider node mobility as the main source of disconnection, CORB only considers the nodes' limited resources...
Deployment strategy is vital for efficiency in applications of wireless sensor network. Deploying wireless sensor network in vast area is very hard and time consuming job. In many applications there is also need to deploy sink other than wireless sensor nodes which sink deployment is another issue. In this paper, we use spanning tree for autonomous deploying wireless nodes and sinks. Deploying actor...
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