A secure TOF-based transceiver with low latency and sub-cm ranging for mobile authentication applications

作者：Song, Haixin; Ding, Zhendong; Rhee, Woogeun; Wang, Zhihua

来源：2018 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2018, Philadelphia, PA, United states, 2018-06-10 To 2018-06-12.

DOI：10.1109/RFIC.2018.8429022

• Distance bounding protocols
• Mobile authentication
• Short processing time
• Short-range communication
• Time of flight method
• Time to digital converters
• Transceiver system
• Wireless remote control

This paper describes a low-power localization-verified transceiver system for secure wireless remote control and authentication applications. A pulse-based time-of-flight (TOF) method is employed for low latency localization to overcome the relay attack problem, while PPM and BPSK being used for spectrum-compliant short-range communication. Noncoherent edge-detection demodulation along with the PPM enables a short processing time between data demodulation and retransmission, satisfying the requirement of a bit-exchange step for secure distance-bounding protocols against the relay attack. Digital-intensive TOF localization with fine ranging resolution is performed by a Δ∑time-to-digital converter (TDC). A prototype 3-to-5GHz pulse-based transceiver for localization and communication is implemented in 65nm CMOS. With duty-cycled operation, the transceiver consumes 14.2mW from a 1V supply and achieves the RMS ranging accuracy of 4.7mm. Σ

• 出版日期2018
• 单位清华大学