Title:
CONFIDENCE-TRANSFER-BASED BLIND AUTHENTICATION METHOD AND SYSTEM FOR FREQUENCY SELECTIVE FADING CHANNEL
Document Type and Number:
WIPO Patent Application WO/2019/113863
Kind Code:
A1
Abstract:
Disclosed is a confidence-transfer-based blind authentication method for a frequency selective fading channel. The method comprises: transmitting a carrier signal to a frequency selective fading channel having a plurality of paths, wherein the carrier signal comprises an authentication signal, a pilot signal and an information signal, and the authentication signal is superimposed onto the pilot signal; receiving the carrier signal, sequentially carrying out blind known interference cancellation (BKIC) processing on the carrier signal in each path to obtain a target signal, and carrying out differential signal processing on the target signal to obtain a target authentication signal, wherein during the BKIC processing, the pilot signal is cancelled by using a prior probability density function and a Tanner graph of the target signal and by means of confidence transfer technology; obtaining a reference signal based on a key and the pilot signal, carrying out differential signal processing on the reference signal to obtain a reference authentication signal, and calculating the correlation between the target authentication signal and the reference authentication signal to obtain test statistics; and comparing the test statistics with a specified threshold value, and thereby determining whether the carrier signal can pass authentication.
Inventors:
XIE NING (CN)
ZHANG LI (CN)
ZHANG LI (CN)
Application Number:
PCT/CN2017/116024
Publication Date:
June 20, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
H04L25/02
Domestic Patent References:
| WO2009032324A2 | 2009-03-12 |
Foreign References:
| CN102256249A | 2011-11-23 | |||
| CN103152744A | 2013-06-12 |
Attorney, Agent or Firm:
SHENZHEN SERMON PATENT FIRM et al. (CN)
Download PDF: