The increasing demand for location-based services inside buildings has made indoor positioning a significant research topic. This study deals with indoor positioning using the Wireless Ethernet IEEE 802.11 (Wi-Fi) standard that has a distinct advantage of low cost over other indoor wireless technologies. Most of the proposed Wi-Fi indoor positioning systems use either proximity detection via ra...

With widely deployed WiFi network and the uniqueness feature (fingerprint) of wireless channel information, fingerprinting based positioning is currently mainstream indoor method, in which fingerprint database construction crucial. However, for accuracy, this approach requires enough data to be sampled at many reference points, consumes excessive efforts time. In paper, we collect Channel State...

This paper introduced fingerprint recognition to protect USB Key’s pin number. Pin number is easily stolen and sometimes it’s too hard to keep in mind. To overcome these problems, a fingerprint key based USB Key pin number protection system has been proposed. Using biometric like fingerprint to protect USB Key pin number improves security and convenience of users. And the fingerprint key is gen...

Most of the existing fingerprint identification techniques are unable to distinguish different wireless transmitters, whose emitted signals are highly attenuated, long-distance propagating, and of strong similarity to their transient waveforms. Therefore, this paper proposes a new method to identify different wireless transmitters based on compressed sensing. A data acquisition system is design...

[-5]Indoor localization based on WiFi has attracted a lot of research effort because of the widespread application of WiFi. Fingerprinting techniques have received much attention due to their simplicity and compatibility with existing hardware. However, existing fingerprinting localization algorithms may not resist abnormal received signal strength indication (RSSI), such as unexpected environm...