Indoor Location Wi-Fi Fingerprinting using Invariant Received Signal Strength
نویسندگان
چکیده
منابع مشابه
Indoor Location Sensing with Invariant Wi-Fi Received Signal Strength Fingerprinting
A method of location fingerprinting based on the Wi-Fi received signal strength (RSS) in an indoor environment is presented. The method aims to overcome the RSS instability due to varying channel disturbances in time by introducing the concept of invariant RSS statistics. The invariant RSS statistics represent here the RSS distributions collected at individual calibration locations under minima...
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The main approach for a Wi-Fi indoor positioning system is based on the received signal strength (RSS) measurements, and the fingerprinting method is utilized to determine the user position by matching the RSS values with the pre-surveyed RSS database. To build a RSS fingerprint database is essential for an RSS based indoor positioning system, and building such a RSS fingerprint database requir...
متن کاملConditional Entropy and Location Error in Indoor Localization Using Probabilistic Wi-Fi Fingerprinting
Localization systems are increasingly valuable, but their location estimates are only useful when the uncertainty of the estimate is known. This uncertainty is currently calculated as the location error given a ground truth, which is then used as a static measure in sometimes very different environments. In contrast, we propose the use of the conditional entropy of a posterior probability distr...
متن کاملWi-Fi Location Fingerprinting Using an Intelligent Checkpoint Sequence
For Wi-Fi positioning location fingerprinting is commonly employed. Fingerprinting, however, is very labour consuming as a database with RSS (Received Signal Strength) scans from all visible access points APs measured on a large number of known reference points has to be established. To overcome this drawback a novel approach is developed which uses a logical sequence of intelligent checkpoints...
متن کاملIndoor position location with Wi-Fi LAN
A method of indoor position location with Wi-Fi LAN infrastructure (IEEE standard 802.11a) has been proposed. The frequency coherence function of a space channel between the access point and the user’s antenna is used as a metric for solving the positioning problem. The proposed method provides higher accuracy of user position location than the method based on the analysis of the power distribu...
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ژورنال
عنوان ژورنال: Asian Journal of Scientific Research
سال: 2016
ISSN: 1992-1454
DOI: 10.3923/ajsr.2016.206.213