Abstract
Real-time indoor positioning systems provide information about localization of devices required for communication. This paper focuses on Device-to-Device (D2D) communication among smartphones for device discovery and communication. Wi-Fi Direct (Wi-FiDi) is a type of Wi-Fi where a smartphone can connect with another without internet or Access Point (AP). There is no demand for an infrastructure, and this peer-to-peer network doesn’t permit multi-hop communication like ad-hoc network. In a Wi-FiDi network, each device acts as an AP for connecting with other devices. Wi-FiDi allows devices to communicate without Wi-Fi routers. Each AP in the WLAN network is configured with its location in geospatial coordinates (latitude, longitude and altitude) and civic address. Fine Time Measurement (FTM) protocol is implemented and Round Trip Time (RTT) is measured . FTM determines accurate position of a mobile device from an AP. New version of Android OS supports FTM protocol. It allows a mobile device to make a request either in scheduled or immediate measurement mode. WiDiSi simulator is used for implementing Wi-FiDi networks. Devices at proximity can be discovered and connected at higher speed when compared to other wireless technologies. The speed of communication is improved and can be used to locate devices that are few meters away with greater accuracy. The range can also be extended to 1 km covering the entire smart building.
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Malar, A.C.J., Kanmani, R., Priya, M.D., Nivedhitha, G., Divya, P., Surya, T.S.P. (2023). An Infrastructure-Less Communication Platform for Android Smartphones Using Wi-Fi Direct. In: Agrawal, R., Mitra, P., Pal, A., Sharma Gaur, M. (eds) International Conference on IoT, Intelligent Computing and Security. Lecture Notes in Electrical Engineering, vol 982. Springer, Singapore. https://doi.org/10.1007/978-981-19-8136-4_12
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DOI: https://doi.org/10.1007/978-981-19-8136-4_12
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