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Over the past decades, many WSN (Wireless Sensor Network) systems have emerged. Today, the WSN systems with different technologies have started to become parts of Internet of Things (IoT) and Cyber-Physical Systems(CPSs). This situation has also led to the emergence of heterogeneous and autonomous WSN structures. In these types of complex projects, involving different WSN systems, it is necessary...
Wireless communication presents the most attractive sign of development in this decades. It contributes to the appearance of Wireless Sensor Network (WSN) which is invented in order to increase the supervision capacity for such phenomenon. It gets more regard from both the customers and the research society. (WSNs) is composed from numerous wireless sensor nodes which suffer from a very serious energy...
Internet Protocol version 6 (IPv6) over Low power Wireless Personal Area Networks (6LoWPAN) is extensively used in wireless sensor networks (WSNs) due to its ability to transmit IPv6 packet with low bandwidth and limited resources. 6LoWPAN has several operations in each layer. Most existing security challenges are focused on the network layer, which is represented by its routing protocol for low-power...
Network life time is a critical aspect of application in wireless sensor networks (WSN). Furthermore energy consumption and security has arisen as a major aspect in network design. In this article, a study of the backoff exponent (BE) management in the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) method under the Medium Access Control (MAC) is conducted. While BE parameter define...
In Wireless Sensor Networks, topology management guarantees energy efficiency and maintains the connection among the nodes.Most of the existing systems are not providing trust among the sensor nodes.Therefore,issues in security should also be considered in the management of topology in WSN.To overcome the above problem,in this paper,we propose (TBR) a TRust Based Routing with Topology management.Moreover...
Wireless sensor networks (WSNs) is an assemblage of several lightweight and portable devices, usually deployed for monitoring and surveillance purposes. On the account of their small size these sensor nodes suffer from certain limitations such as limited source of energy, constrained memory size and low processing speed. Nowadays major research areas include devising new methods to prolong the network...
Maximizing network lifetime is a major objective for designing and deploying a wireless sensor network. Clustering sensor nodes is an effective topology control approach helping achieve this goal. In this paper, we present a new method to prolong the network lifetime based on the improved particle swarm optimization algorithm, which is an optimization method designed to select target nodes. The protocol...
Nowadays the energy consumption has become a critical challenge in Wireless Sensor Network (WSN). Wireless connection suffer from some weaknesse chiefly fault detection and energy efficiency which stay again the main problems in (WSN). Both was under the scope of research communities and industry engineers. We are interested to the IEEE 802.15.4 standard with beacon enabled mode. IEEE802.15.4 is a...
Geographic Routing is suitable for the limited resource in wireless sensor networks and Ricci flow-based methods have been employed. Unfortunately, iterative process through previous methods may spend abundant energy in order to discovery route, which obviously effect their advantageous of this sort of schemes. In this paper, we focus on avoiding unnecessary iterations and propose an algorithm through...
With the advancement of technology, a surge of research interest in cognitive radio based networks in smart communities has been mounting. It is anticipated that CR-enabled networks will play a vigorous role in the enrichment of communication efficiency in neighborhood sensor area network. This paper presents a framework for Cognitive Radio based event anomaly detection mechanism. A skeleton for intelligent...
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.
In this paper, a communication load balanced dynamic topology management algorithm (CLB-AODV) is proposed to extend the wireless sensor network (WSN) lifetime via managing the participation in communication process among all nodes in the network. The idea is that, each time there is a failure in the network topology; the topology is adjusted only on-demand by choosing the best path according to paths...
Graph-based topology control adapts wireless topologies to achieve certain target graph structures. Wireless sensor networks seem well-suited for the expectations (in particular those on provided energy savings) raised by topology control. Nevertheless, topology control has never made the breakthrough in real-world deployments. This work explores the reasons for this, identifying five practical obstacles...
The energy efficiency of WSN is important to determine whether a WSN can be widely and reliably deployed and applied. The fundamental problem is to lessen the energy consumption produced by the communication modules of WSN nodes. This paper analyzes and solves the problem from the perspective of how to design efficient data aggregation method. It aims to reduce the data quantity to be collected through...
The ZIGBEE standard is one of the basal elucidation protocol proposed for wireless sensor networks. The protocol describes a flexible MAC layer layout to meet a variety of applications. Since WSN is pertinence-specific it is very termitable to provide a generic explication for all type of applications and topologies. Network inaccessibility is a sensual affair derived from the subsistence of fault...
Time Synchronized Channel Hopping protocol (TSCH) belongs to the new low-power MAC protocols included in IEEE 802.15.4e with better properties as a multihop network in industrial applications. An open issue in the standard is how to build and maintain the communication schedule. In this paper we have implemented a minimal recommended configuration and tested it against one proposed centralized scheduling...
Topology topic has gained additional and special interest in the field of Wireless Sensor Networks (WSN). While WSN deployments are in general optimized by the known fundamental network topology, another trend is to enhance WSN by managing the network topology. Many propositions have been tested in this field, like topology directed routing, cooperating schemes, sensor coverage based topology control...
Wireless Sensor Networks (WSN) based on the IEEE 802.15.4 standard are constantly expanding. Applications like production control, building control are more and more based on WSN because of their energy efficiency, self-organizing capacity and protocol flexibility. The IEEE 802.15.4 standard defines 3 network topologies: the mesh topology, the star topology and the Cluster-Tree topology. However,...
Energy problem is an important consideration in wireless sensor network. It is because sensor nodes in network use limited battery source which leads to limited lifetime. Also, sensor nodes in WSNs use multi-hop communication, so nodes near sink node transmit more data compared with farther nodes. These phenomenon results in energy hole problem which is critical to prolong lifetime of sensor network...
The Wireless sensor network (WSN) deployment areas in real time environment are often inaccessible and unreliable communication resulting in degradation of network performance. The critical issues in any WSN are QoS and energy. Post deployment, it may not always be feasible to replace the batteries in a WSN. Long hops of transmission maintaining the QoS with more energy consumption results in reduction...
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