MFPL: Multi-Frequency Phase Difference Combination Based Device-Free Localization

Device-Free Passive Localization

This report describes a Device-Free Passive Localization System (DfP). The system provides a software solution over nominal WiFi equipment to detect the presence and track intruders in an area of interest. The system is based on measuring the changes in the received RSSI at a fixed receiver form a fixed transmitter. Using RSSI values for multiple transmitters and monitoring points, we show a sy...

Lecture 6 : Device - Free Localization

A Multi-Scale Spatial Model for RSS-based Device-Free Localization

RSS-based device-free localization (DFL) monitors changes in the received signal strength (RSS) measured by a network of static wireless nodes to locate people without requiring them to carry or wear any electronic device. Current models assume that the spatial impact area, i.e., the area in which a person affects a link’s RSS, has constant size. This paper shows that the spatial impact area va...

Nonlinear Optimization-Based Device-Free Localization with Outlier Link Rejection

Device-free localization (DFL) is an emerging wireless technique for estimating the location of target that does not have any attached electronic device. It has found extensive use in Smart City applications such as healthcare at home and hospitals, location-based services at smart spaces, city emergency response and infrastructure security. In DFL, wireless devices are used as sensors that can...

Multichannel RSS-based Device-Free Localization with Wireless Sensor Network

RSS-based device-free localization (DFL) is a very promising technique which allows localizing the target without attaching any electronic tags in wireless environments. In cluttered indoor environments, the performance of DFL degrades due to multipath interference. In this paper, we propose a multichannel obstructed link detection method based on the RSS variation on difference channels. Multi...