Journal ArticleDOI
Evolutionary approaches for minimising error in localisation of wireless sensor networks
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TLDR
Simulation results show that the evolutionary algorithms greatly improve the localisation accuracy when it is used over the traditional mathematical approach, and GSA is the most efficient in bringing down the localised error.Abstract:
Localisation in wireless sensor networks WSNs is one of the important fundamental requisite that needs to be resolved efficiently for the deployment of sensor nodes and its operation. Localisation is a challenging issue in applications such as routing and target tracking which is all location dependent. Hence, this work aims at determining the location of the sensor nodes with high precision. This work is initially based on localisation using Mobile Anchors, a range-free localisation method used for localising the nodes. When the anchors move through the network, they broadcast their location as beacon packets. The sensor nodes after collecting enough beacon packets from mobile anchors and location packets from neighbouring nodes are able to calculate their location. To improve the localisation accuracy, evolutionary algorithms such as genetic algorithm GA, particle swarm optimisation PSO and genetic simulated annealing GSA have been used. Detailed study of localisation accuracy, root mean square error RMSE and comparison among the evolutionary approaches has been done. Simulation results show that the evolutionary algorithms greatly improve the localisation accuracy when it is used over the traditional mathematical approach. The results also show that among the evolutionary algorithms, GSA is the most efficient in bringing down the localisation error.read more
Citations
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Journal ArticleDOI
A Review of Computational Intelligence Techniques in Wireless Sensor and Actuator Networks
TL;DR: This paper reviews the application of several methodologies under the CI umbrella to the WSAN field and describes and categorizes existing works leaning on fuzzy systems, neural networks, evolutionary computation, swarm intelligence, learning systems, and their hybridizations to well-known or emerging WSAN problems along five major axes.
Journal ArticleDOI
Energy-aware task scheduling by a true online reinforcement learning in wireless sensor networks
TL;DR: An energy-aware task scheduling method is proposed to achieve better energy consumption/performance trade-off and outperforms existing methods for the target tracking application.
References
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Journal ArticleDOI
Wireless sensor networks: a survey
TL;DR: The concept of sensor networks which has been made viable by the convergence of micro-electro-mechanical systems technology, wireless communications and digital electronics is described.
Journal ArticleDOI
Wireless sensor network localization techniques
TL;DR: An overview of the measurement techniques in sensor network localization and the one-hop localization algorithms based on these measurements are provided and a detailed investigation on multi-hop connectivity-based and distance-based localization algorithms are presented.
Journal ArticleDOI
Localization with mobile anchor points in wireless sensor networks
TL;DR: A range-free localization scheme using mobile anchor points equipped with the GPS moves in the sensing field and broadcasts its current position periodically, so that no extra hardware or data communication is needed for the sensor nodes.
Proceedings ArticleDOI
Localization in wireless sensor networks using particle swarm optimization
A. Gopakumar,Lillykutty Jacob +1 more
TL;DR: A novel and computationally efficient global optimization method based on swarm intelligence for locating nodes in a WSN environment using the mean squared range error of all neighbouring anchor nodes is taken as the objective function.
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