A Review of Friis Equation Based Indoor Positioning
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Wireless Local Area Network (WLAN) based Indoor positioning does not require any special equipments dedicated for positioning only and it is economical. WLAN based indoor positioning techniques can be classified into fingerprinting methods or friis equation based methods. Fingerprinting methods are pretty accurate but collecting fingerprints takes a long time. Friis equation based methods require exact coordinates of access points (AP) and easy to implement. Therefore, this paper reviews friis equation based indoor positioning techniques.
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