Unconditional secure communication method based on beam-forming and security code
US9985986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Oct 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/122
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an unconditional secure communication method based on beam-forming and security code, which comprises the following steps of: Legitimate users send to the signal pie-encoded and modulated, meanwhile eavesdropper receives signals and calculates the bit error rate; computing security coding parameters, legitimate received users send pilot sequence, and legitimate sending users estimate legitimate channel, and extract information on legal channel coding and modulating signal was SVD pre-coding and sending; the signal was decoded, that will be judgment and demodulation then the signal after decoding do security code is transmitted to message or tapping, due to lack of legal channel information, eavesdropper cannot lift pre-coding processing of the received signal with the high bit error rate. This method can establish advantages channel of the wiretap model channel and to ensure that legitimate users can receive signals at the lower bit error rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.