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Transcript of WSN
Local coordinates Phase 2
Global Coordinates All sensors are stationary. So the network topology is fixed.
There are no landmarks in the network.
All sensors are homogeneous, with the same technical characteristics, and especially the same transmission range.
All sensors have enough energy to accomplish a node localization algorithm.
All sensors use omnidirectional antennae.
All the wireless links between sensors are bidirectional.
There are no base stations to coordinate or supervise activities among sensors. No centralized controller. Some Considerations Global Coordinate System - via Transformation Matrix (Affine Transformation) Flip Ambiguity Conclusions Energy Consumption Basics Additional Algorithms 3D Algorithm - SWARM Optimization Heuristic Method for Localization Two Objective HS for distance and connectivity based Localization Node Capture Attack and Defense Applications Underwater Healthcare Cattle Monitoring Outline Introduction
State of the Art Algorithms
Conclusions Choosing the Localization Algorithm is highly affected by the Application and the Available Resources. Real-life applications involve 3D and hence more realistic Algorithms are still required. Most Researchers are targeting the Anchor Free Algorithms and enhancing their accuracy, in addition to possible 3D realization. By: Eng. Ahmed Emam Presented to : Dr. Ahmed Akl  B. F. ,. B. D. A. Guoqiang Mao, "Wireless sensor network localization techniques," Computer Networks, vol. 51, pp. 2529 - 2553, 2007.
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