Design of a data transfer system on smartphones using Wi-Fi direct and accelerometers

Nowadays using smartphones is becoming common, which results in popularity of using short-range wireless communication: Bluetooth, Near Field Communication (NFC), and Wi-Fi Direct. However, we still have a problem to identify the communication partner relying on Media Access Control (MAC) addresses. To deal with this problem, we have been explored using accelerometers built into smartphones. In this paper we propose EriCC-W, a data transfer system using Wi-Fi Direct and Accelerometers. EriCC-W aims at identifying dedicated smart-phones by user's gesture that transformed into time series of three-axis acceleration data and further into frequency spectrum. The obtained frequency spectrum is exchanged between multiple users for connection. This paper describes the design and implementation of EriCC-W.