Title:
METHOD FOR ESTABLISHING UNCONDITIONAL SECURITY COMMUNICATION MODEL BASED ON COMBINATION OF BEAMFORMING AND SECURITY CODING
Document Type and Number:
WIPO Patent Application WO/2016/201719
Kind Code:
A1
Abstract:
Disclosed is a method for establishing an unconditional security communication model based on the combination of beamforming and security coding. The method comprises: a legal sending user sends a pre-coded and modulated signal, and an eavesdropping user receives the signal and calculates an eavesdropping bit error rate; a security coding parameter is calculated, a legal receiving user sends a pilot frequency sequence, and the legal sending user estimates a legal channel, extracts information about the legal channel to perform SVD pre-coding on the signal subjected to security coding and modulation, and sends the signal; and the legal receiving user or the eavesdropping user receives the signal and decodes same, performs judgement and demodulation on the decoded signal, and performs security decoding on a demodulated binary bit stream to obtain a transmitted signal or eavesdropped signal. Since the eavesdropping user lacks information about the legal channel, pre-coding processing of the received signal cannot be released, so that the bit error rate is high. The method can achieve the establishment of an advantageous channel in an eavesdropping signal model, and ensure that the legal user receives signals under a low bit error rate.
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Inventors:
WEN HONG (CN)
XIANG DA (CN)
TANG JIE (CN)
SONG HUANHUAN (CN)
XIANG DA (CN)
TANG JIE (CN)
SONG HUANHUAN (CN)
Application Number:
PCT/CN2015/082424
Publication Date:
December 22, 2016
Filing Date:
June 26, 2015
Export Citation:
Assignee:
UNIV ELECTRONIC SCIENCE & TECH CHINA (CN)
International Classes:
H04L1/06; H04B7/04
Foreign References:
| CN102640447A | 2012-08-15 |
Other References:
SONG, HUANHUAN ET AL.: "A Scheme for Improving Security Performance of Multi-User MIMO Broadcast Channel", COMMUNICATIONS TECHNOLOGY, vol. 48, no. 2, 28 February 2015 (2015-02-28), ISSN: 1002-0802
XIANG, DA ET AL.: "The Matrix Encoding Method For Security Codes", NETWORK SECURITY TECHNOLOGY & APPLICATION, 31 December 2014 (2014-12-31), ISSN: 1009-6833
WEN, HONG ET AL.: "MIMO Cross-Layer Secure Communication Architecture Based on STBC", GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2010, 10 December 2010 (2010-12-10), XP031846522, ISSN: 1930-529X
XIANG, DA ET AL.: "The Matrix Encoding Method For Security Codes", NETWORK SECURITY TECHNOLOGY & APPLICATION, 31 December 2014 (2014-12-31), ISSN: 1009-6833
WEN, HONG ET AL.: "MIMO Cross-Layer Secure Communication Architecture Based on STBC", GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2010, 10 December 2010 (2010-12-10), XP031846522, ISSN: 1930-529X
Attorney, Agent or Firm:
CHENGDU JINYING PATENT FIRM (CN)
成都金英专利代理事务所 (CN)
成都金英专利代理事务所 (CN)
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