Localization Techniques for Mobile Wireless Sensor Networks (original) (raw)

Localization protocols for mobile wireless sensor networks: A survey

Computers & Electrical Engineering, 2017

Wireless Sensor Networks (WSNs) were emerged with the recent advances in the field of microelectronics and the emergence of wireless communication technology. Although, it has been shown that mobility alleviates several issues relating to sensor network like the coverage optimization and the connectivity. The need for node localization is one of the most important challenges when considering mobility. Localization in WSN means estimating the position or spatial coordinates of nodes. This paper addresses the various issues in localization and presents the state of the art of localization algorithms in Mobile WSNs (MWSNs). In this paper, we classified the localization algorithms based on the localization technique, the anchor based/cooperative, the nodes' mobility state and the information state and, we presented a detailed analysis of the representative localization algorithms. Moreover, we compared the existing localization algorithms and we discussed some possible directions of future research for the localization algorithms in MWSNs.

A Review of Localization Techniques for Wireless Sensor Networks

One problem in wireless sensor network technology is localization problem. In the most applications, the data collected by the network without location information isn't useful. Location information has an important role in both networking and application domains of wireless sensor network. This paper surveys the localization algorithms and proposes a different taxonomy based on key features. In additional, it introduces the important factors to validate the performance of localization techniques.

A Review on Localization Algorithms in Wireless Sensor Networks

2014

In wireless sensor networks (WSNs), nodes are deployed in sensor fields for monitoring and controlling the physical environments. Node localization is fundamental challenge in wireless sensor networks as without knowing the location of nodes sensed information will have no value. Therefore, it is vital that nodes must know their location. This paper provides a review of basic techniques for localization. The localization algorithms are classified into GPS based or GPS free, Anchor based or Anchor free, Centralized or Distributed and Range based or range free. Paper further discusses limitations of each of the algorithms.

Overview of Localization Techniques in Wireless Sensor Networks

Design Engineering (Toronto), 2021

A sensor network's primary role is to collect and forward data to its intended endpoint. It's important to understand where the data we've gathered is held. In Wireless Sensor Networks (WSNs), localization is widely used to determine the position of sensor nodes. In a WSN with thousands of nodes, installing GPS on each sensor node is costly, and GPS cannot provide precise position results in an in-building WSN. It's also impossible to manually configure location relation on each sensor node in a dense network. This is problematic since the sensor nodes must decide their current location without the use of special hardware such as GPS or manual setup. Because of localization methods, WSN implementation is cost-effective. The majority of localization methods rely on an anchor node or beacon node that knows where it is. Other nodes in the network use the anchor node's or beacon node's positioning information to find themselves. In this paper, we give a quick overview of the different types of localization strategies used in wireless sensor networks, as well as the issues and research gaps that still exist.

SURVEY OF DIFFERENT LOCALIZATION TECHNIQUES OF WIRELESS SENSOR NETWORKS

Node localization is essential to report the origin of tasks, support group query of sensors, routing and to answer questions on the network exposure. So, one of the basic challenges in wireless sensor network is node localization. This paper reviews different techniques of node localization in wireless sensor networks. The general idea of the schemes proposed by different scholars for the enhancement of localization in wireless sensor networks is also presented.

Localization Algorithms for Wireless Sensor Networks: A Review

Wireless sensor networks (WSNs) have boomed in this last decade. They are involved in all aspects of our daily lives and make it easier. Despite the great strides in these networks, several problems arose and are remained open. The localization of sensor networks nodes is one of the most challenging problem that has attracted many researches. Consequently, a lot of work has been carried out to provide accurate location information of sensors and sensing field. In this paper, we present a taxonomy of the most important localization technologies proposed for WSNs. We survey different published localization algorithms in the literature while giving an up-to-date with the most recent schemes. Then we highlight their characteristics and describe metrics used for their classification. A complete comparison will be given and also directions of future research will be discussed.

Localization algorithms of Wireless Sensor Networks: a survey

Telecommunication Systems

In Wireless Sensor Networks (WSNs), localization is one of the most important technologies since it plays a critical role in many applications, e.g., target tracking. If the users cannot obtain the accurate location information, the related applications cannot be accomplished. The main idea in most localization methods is that some deployed nodes (landmarks) with known coordinates (e.g., GPS-equipped nodes) transmit beacons with their coordinates in order to help other nodes localize themselves. In general, the main localization algorithms are classified into two categories: range-based and range-free. In this paper, we reclassify the localization algorithms with a new perspective based on the mobility state of landmarks and unknown nodes, and present a detailed analysis of the representative localization algorithms. Moreover, we compare the existing localization algorithms and analyze the future research directions for the localization algorithms in WSNs.

Localization Techniques for Wireless Sensor Networks: A Review

Wireless sensor networks (WSNs) have recently emerges as promising technology in wireless communication field and gained special attention by research groups. It uses small and cheap gadgets with low energy requirements and limited on board computing resourceswhich communicates with each other's or base stations without any pre-defined infrastructure. The property of being infrastructure less makes it suitable in distinctive application situations including remotemonitoring, disaster management, military applications and biomedical health observing devices. In many of these applications, node localization is unavoidably one of the important system parameters for example in target tracking if the nodes are not able to obtain the accurate location information, the related task cannot be performed.It is also helpful in routing, network coverage and quarry management of sensors. In general the localization techniques are ordered into two general classifications: range based and range free. In this paper, we discussed the various localization algorithms with their applicable areas, requirements and limitations. Moreover, on conclusion we compare these localization algorithms and analyze the future research directions for the localization algorithms in WSNs.

An experimental evaluation of localization methods used in wireless sensor networks

Indonesian Journal of Electrical Engineering and Computer Science, 2022

The problem of localization in wireless sensor networks has received considerable attention from researchers over the past decades. Several methods and algorithms have been proposed to solve this problem. The effectiveness of these algorithms depends on the accuracy of the estimated positions and the information required to calculate the coordinates. In this paper, we propose to evaluate four of the most commonly used localization methods in sensor networks. Our study considers a mathematical description of the studied methods in order to evaluate their complexity, and then a practical implementation on the simulation tool Cooja. We evaluate the performance of the studied methods as a function of the number of deployed sensor nodes and their degree of mobility in terms of several performance metrics. The objective is to reveal the most suitable localization method for a particular case of deployment. Improvement proposals are also provided to improve the most relevant localization method for the investigated study. This is an open access article under the CC BY-SA license.

Localization Techniques in Wireless Sensor Networks

The important function of a sensor network is to collect and forward data to destination. It is very important to know about the location of collected data. This kind of information can be obtained using localization technique in wireless sensor networks (WSNs). Localization is a way to determine the location of sensor nodes. Localization of sensor nodes is an interesting research area, and many works have been done so far. It is highly desirable to design low-cost, scalable, and efficient localization mechanisms for WSNs. In this paper, we discuss sensor node architecture and its applications, different localization techniques, and few possible future research directions.