Wireless sensor data network

International Journal of Trend in Scientific Research and Development, 2018

If sensor networks are to attain their potential, security is one of the most important aspects to be taken care of. The need for security in military applications is obvious, but even more benign uses, such as home health monitoring, habitat monitoring and sub-surface exploration require confidentiality. WSNs are perfect for detecting environmental, biological, or chemical threats over large scale areas, but maliciously induced false alarms could completely negate value of the system. , habitat monitoring, and traffic control are presented. Technical chal sensor network development include network discovery, control and routing, collaborative signal and information processing, tasking and querying, and security. The paper concludes by presenting some recent research results in sensor network algor including localized algorithms and directed diffusion, distributed tracking in wireless ad hoc networks, and distributed classification using local agents.

International journal of advanced research in computer science and software engineering, 2017

A wireless sensor network (WSN) has important applications such as remote environmental monitoring and target tracking. This has been enabled by the availability, particularly in recent years, of sensors that are smaller, cheaper, and intelligent. These sensors are equipped with wireless interfaces with which they can communicate with one another to form a network. The design of a WSN depends significantly on the application, and it must consider factors such as the environment, the application's design objectives, cost, hardware, and system constraints. The goal of survey is to present a comprehensive review of the recent literature in wireless sensor network. This paper reviews the major development and new research challenges in this area.

Wireless sensor network provide a new paradigm for sensing and sending information. Wireless sensor networks are used in monitoring and control applications. Current WSN typically communicate directly with a centralized controller or a satellite, thus communication between the sensor and controller is based on a single hoop. An ongoing area of research is, where WSN nodes or terminals that communicate with each other forming a multi-hop network. Such WSNs could change their topology dynamically when connectivity among the nodes varies with the time due to node mobility. The wireless sensor networks are the type of sensor networks which is used to sense the environmental conditions like temperature, pressure etc.

2013

The advancement in last decade in electronics & communication, computer science and information technology domain has resulted in the new computing and communication era, known as Wireless Sensor Networks. . In the past the wired sensors were implemented in limited applications in industries. However, wireless implementation makes the wide deployment of sensor nodes more feasible than before. There has been much research regarding the great potential capabilities of wireless sensor networks (WSNs) in applications such as environmental monitoring, habitat study, military surveillance in the battlefield and home automation. With sharp decreases in cost and tangible improvements in storage and processing capabilities of sensor nodes, the integrated presence of sensor nodes in human everyday-life, as the connector of the physical environment with virtual digital world, will be dominant in near future. This paper survey Wireless Sensor Networks (WSN) and their technologies, routing and a...

2004

This paper investigates the research issues in Wireless Sensor Networks (WSNs), which is a new computing paradigm that emerged from the fusion of the SCADA (Supervisory Control and Data Acquisition) systems and Ad hoc networks technologies. WSNs provide network connectivity without the aid of any preexisting networking infrastructure. Very small sensor nodes, capable of sensing, data processing, and wireless communication, brought the idea of WSNs based on joint effort of a large number of nodes. WSNs are becoming an increasingly vital technology that will be used in a variety of applications such as inventory tracking, home automation, physiological monitoring, habitat monitoring, home automation, precision agriculture, and forest fire detection. Dynamic network topology, limited battery power, and constrained wireless bandwidth are the special characteristics of WSNs which make management of it significantly more challenging than conventional wired networks. This paper presents an overview of research trends and challenges in the design and implementation of WSNs. It summarizes the potential challenges that influence the WSNs design. Prospective applications of WSNs are described to show the importance of WSN. It also investigates the research issues of communications protocol at different layers.

2012

This article provides an overview of wireless sensor networks, their architecture, application areas, and some open research issues. This article is submitted to the G. H. Raisoni College of Engineering and Management as a part of partial fulfilment for the award of the degree of Master of Engineering in Electronics and Telecommunication (VLSI and Embedded Systems Design) of the University of Pune in the academic year 2011-2012. Wireless sensors and wireless sensor networks have recently come to the forefront of the scientific community. This results from the increasingly smaller-sized devices being engineering, enabling many applications. The use of these sensors and the possibility of organizing them into networks have revealed many research issues and have highlighted new ways to cope with specific problems. A wireless sensor network is a collection of nodes organized into a cooperative network. Each node consists of processing capability that may contain multiple types of memory (program, data and flash memories), have an RF transceiver (usually with a single omnidirectional antenna), have a power source (e.g., batteries and solar cells), and accommodate various sensors.

2021

Wireless sensor networks (WSNs) is one of the significant parts in networking area. Because they are cheap, efficient, and small, they are become more and more important for several applications. However, with the widespread use of applications that rely on wireless sensor networks, they continue to suffer from limitations such as memory and computing. Since, the need for finding effective solutions, especially after the emergence of the Internet of Things, which relies on the efficiency of wireless sensor networks. In this study, a survey was given of the latest research in this field for the years 2018-2020, which was classified into six categories: 1) presented an overview of the applications, management and security of wireless sensor networks. 2) Focused on improving classification algorithms, routing, and energy saving. 3) Review the developed methods of the techniques for information gathering. 4) Focused on coverage, connectivity and positioning techniques. 5) Displayed the ...

The wireless sensor network (WSN) is a combination of sensing, computation, and communication into a single tiny device. A sensor network consists of an array of numerous sensor networks of diverse types interconnected by a wireless communication network Sensor data is shared between these sensor nodes and used as input to a distributed estimation system. The system extracts relevant information from the available data. Fundamental design objectives of sensor networks include reliability, accuracy, flexibility, cost effectiveness, and ease of deployment. Each node has at least a sensor with an embedded processor, and low power radius. It acts as information source, sensing and collecting data samples from the environment. Node can also act as information sink, receiving dynamic configuration information from other nodes or external entities. The end portion of a node can be an antenna. A chosen configuration is the microstrip structure which allows for planar circuitry to be integrated with the WSN node. WSNs use small, low-cost embedded devices for a wide range of applications. They do not rely on any pre-existing infrastructure. The WSNs need not communicate directly with the nearest high-power control tower or base station, but only with their local peers. In this paper we have discussed related to WSN,sensors, criteria to choose a sensor, classification of sensors, sensor utilization and also we have discussed about some real WSN applications with their remaining challenges.

—Wireless sensor networks (WSNs) have been converted to one of the main topics in the electronic, computer and communication engineering. Among the main focuses in the field of the WSNs, the routing protocols play an essential role. They concern the communications process and rules between sensor nodes in order to obtain the maximum efficiency in terms of the communication quality and connectivity. This paper is a concise attempt a brief investigation on the routing algorithms and architecture of a sensor node along with a details explanation on the communication elements of sensor nodes. This article points out on the three network-structure based categories of routing algorithm that are data-centric routing, hierarchical-based routing, and location-based routing protocols.