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Wireless Sensor Network is a technologically high in demand field which is used in plenitude of areas like military surveillance, environmental control, automatic manufacturing environments, smart homes etc. WSN is an affiliation of relatively large number of nodes that are spread across a large geographical area. The components include the features of sensing, data processing and communicating. For...
In Wireless Sensor Network (WSN), sensor nodes are densely deployed over the region to monitor the environmental conditions like Temperature, Pressure, Sound, Vibration and Light. These networks are widely used in various fields such as medical, industrial monitoring, building and home automation or military surveillance. Sensor nodes in WSN continuously transfer the sensed information to Base Station...
Wireless Sensor Networks (WSNs) consists of sensor nodes that are battery powered, these nodes are often deployed in remote areas and left unattended for long periods between battery charges. According to the studies, over sixty percent of energy is consumed during the transmission and reception process of the network. Due to the reason stated above, protocols and algorithms have been designed to...
Underwater Wireless Sensor Networks are generally used to explore aquatic environment. In UWSN, discovering the region of sensor node is a major issue. Observed data is useful when sensor node is localized. There are various approaches present for locating the nodes in Wireless Sensor Network yet they are not as useful in UWSN. In this paper we have presented various approaches available for UWSN...
Wireless Sensor Network (WSN) is a group of sensors communicating with each other by wireless connection. It is used to gather information from critical areas. In WSNs, the sensor nodes are disposable. So, One of the major issues during designing WSNs is energy consumption. To prolong the lifetime of the network, the power consumption must be reduced. To do this job, some routing protocols have been...
Due to the limitation of the energy, the performances and applications were constrained of the pure batteries powered wireless sensor networks (WSNs). WSNs with energy harvesting extracting energy from the surrounding environment, supplement energy to the sensor nodes, can be significant prolong the lifespan of WSNs, or even make WSNs running for perpetual. In order to determine the node energy harvesting...
The Wireless Sensor Networks (WSNs) are composed of small sensor nodes capable of sensing (collecting), processing and transmitting data related to some phenomenon in the environment. However, the sensor nodes have severe constraints, such as: low network bandwidth, short wireless communication range, and limited CPU processing capacity, memory storage and power supply. Therefore, maximizing the benefits...
In this paper, we compare problems of cluster formation and cluster-head selection between different protocols for data aggregation and transmission. We focus on two aspects of the problem: (i) how to guess number of clusters required to proficiently consume available sources for a sensor network, and (ii) how to select number of cluster-heads to cover up sensor networks more proficiently. A sensor...
The advent and development in the field of Wireless Sensor Networks (WSNs) in recent years has seen the growth of extremely small and low-cost sensors that possess sensing, signal processing and wireless communication capabilities. These sensors can be expended at a much lower cost and are capable of detecting conditions such as temperature, sound, security or any other system. A good protocol design...
As sensor network edge closer towards wide-spread deployment, security issues become a central concern. So far, more research has focused on making sensor networks for feasible and useful, but not concentrated on security. Recently, technological advancement in the field of nanotechnology have increased the computation power of the wireless nodes while adhering to the energy constraints. This made...
This paper discusses wireless sensor network technology manufacturing equipment in the building air management system for monitoring the application of safety issues. Further analysis of the wireless sensor network architecture that can extend the life of the system and build a common platform of issues is also present in this paper. On this basis, establish security monitoring and management system...
Recently many Wireless Sensor Network (WSN)-based agriculture monitoring systems have been implemented mostly for developed countries. WSN in these monitoring systems uses tree topology and multi-hop dynamic flooding routing protocol that are not energy efficient and has a single point of failure. Though some protocols use zone-based routing they consider that a large number of sensors are deployed...
Sensor deployment is one of the key topics addressed in Wireless Sensor Network (WSN). This paper proposes a new deployment technique of sensor nodes for WSN called as Quasi Random Deployment (QRD). The novel approach to deploy sensor nodes in QRD fashion is to improve the energy efficiency of the WSN in order to increase the network life time and coverage. The QRD produces highly uniform coordinates...
In this paper, a novel secure routing protocol is proposed for wireless sensor networks in which sensor nodes as well as the base station are mobile. The protocol achieves security property through symmetric key cryptography and threshold key cryptography. An analysis of the security strengths of the protocol is presented. Simulation results show the throughput of the proposed protocol and a comparison...
Wireless Sensor Networks (WSNs) consist of small nodes with sensing, computation and wireless communications capabilities. These sensor networks interconnect a several other nodes when established in large and this opens up several technical challenges and immense application possibilities. These wireless sensor networks communicate using multi-hop wireless communications, regular ad hoc routing techniques...
Recent technological advancements in the field of nanotechnology have increased the computation power of the wireless nodes while adhering to the energy constraints. This has made the use of the Wireless Sensor Networks (WSNs), more widespread, used in applications such as area monitoring, industrial monitoring, vehicle detection or military monitoring. Sensor nodes have made it possible to collect...
This In the Parallel itinerary based KNN query processing we have routing phase, KNN boundary estimation and spatial irregularity which uses the routing protocol called Greedy Perimeter Stateless Routing (GPSR). This GPSR offers routing support for Wireless Sensor Network (WSN). However GPSR was designed for the symmetric links (bidirectional reachable), but sensor networks are often asymmetric in...
Data gathering is one of the most popular energy-efficient routing protocols in Wireless Sensor Networks (WSNs). In this research, we introduce a Dynamic Balanced Spanning Tree (DBST) for data aggregation in WSNs which considers several criteria to balance the energy consumption between sensor nodes. A cost function is presented which can follow the conditions of network. It considers various factors...
Wireless sensor networks are equipped with batteries with limited charge, and are often deployed in conditions that make their retrieval and replacement infeasible. Thus, energy conservation has been a primary consideration for protocol design for such networks. Recent advancements in the transfer of energy wirelessly over large distances, such as through radio frequency electromagnetic (EM) waves...
In this paper, we present a trust establishment and management framework for hierarchical wireless sensor networks. The wireless sensor network architecture we consider consists of a collection of sensor nodes, cluster heads and a base station arranged hierarchically. The framework encompasses schemes for establishing and managing trust between these different entities. We demonstrate that the proposed...
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