Contents
What is fingerprinting positioning?
Fingerprint data collection, also called offline training, is the first phase of fingerprint positioning, which uses the fingerprinting technique to store the location dependent characteristics of a signal collected at known locations ahead of the system’s use for localization in a database [33].
What is fingerprinting in indoor positioning?
Fingerprinting is the most popular method of localization because of its high accuracy compared to other methods. It does not require line-of-sight measurements of APs, has low complexity, and gains high applicability in the complex indoor environment [12, 19].
What is fingerprinting in WiFi?
Fingerprinting is a technique used to compare this radio map with the WiFi signal intensity received from an arbitrary point to presume the grid having the most similar pattern as the user’s position.
What is ble fingerprinting?
BLE fingerprinting is characterized by an off-line phase followed by an on-line phase [12]. During the off-line stage fingerprint data are collected to build a model; in fact the location dependent characteristics of a signal acquired at known locations are stored in a database or radio map.
What does RSSI stand for?
Received Signal Strength Indicator
RSSI stands for Received Signal Strength Indicator. The problem with understanding RSSI strength is the fact that RSSI is not a “real” number.
How is fingerprinting used in the positioning system?
The proposed positioning has two major steps of operation. In the first step, we have realized fingerprinting that utilizes lightly populated reference points (RPs) and WCL individually. Using the location estimated at the first step, WCL is run again for the final location estimation.
How does fingerprinting reduce the number of RPS?
Using the location estimated at the first step, WCL is run again for the final location estimation. The proposed localization technique reduces the number of required fingerprint RPs by more than 40% compared to normal fingerprinting localization method with a similar localization estimation error. 1. Introduction
Which is better fingerprinting or weighted centroid localization?
In this paper, an improvement over traditional fingerprinting localization is proposed by combining it with weighted centroid localization (WCL).
How is fingerprinting used in the RSSI system?
Most of the RSSI-based positioning research works use fingerprinting, trilateration, and triangulation methods as their basic techniques in IPS development. Among them, fingerprinting is adopted extensively because of its high degree of accuracy.