Belief propagation-based physical layer blind authentication method and system for time-varying fading channels
US11395140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Jul 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/79
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is a physical layer blind authentication method for a time-varying fading channel based on belief propagation. The method includes that: a transmitter transmits a carrier signal to a wireless channel, the carrier signal includes an authentication signal, a pilot signal and an information signal, and the wireless channel is the time-varying fading channel; a receiver receives the carrier signal, and performs BKIC processing and differential signal processing on the carrier signal to obtain a target authentication signal, the receiver obtains a reference signal based on a key and the pilot signal, performs the differential signal processing on the reference signal to obtain a reference authentication signal, and calculates a correlation between the target authentication signal and the reference authentication signal to obtain a test statistic; and compares the test statistic with a prescribed threshold to determine whether the carrier signal is capable of passing authentication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.