The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Dec. 27, 2020
University of Electronic Science and Technology of China, Chengdu, CN;
Science & Technology Department of Sichuan Province, Chengdu, CN;
Jie Tang, Chengdu, CN;
Liang Chen, Chengdu, CN;
Hong Wen, Chengdu, CN;
Xinchen Xu, Chengdu, CN;
Huanhuan Song, Chengdu, CN;
Kaiyu Qin, Chengdu, CN;
University of Electronic Science and Technology of China, Chengdu, CN;
Science & Technology Department of Sichuan Province, Chengdu, CN;
Abstract
A method for physical layer secure transmission against an arbitrary number of eavesdropping antennas includes: S: communication between legitimate transmitter Alice and legitimate receiver Bob is confirmed; S: Alice randomly generates a key bit bwith Mbits, maps the key bit binto a key symbol K, and performs an XOR on the key bit band to-be-transmitted confidential information b to obtain an encrypted bits b; S: Bob transmits a pilot sequence to Alice, and Alice calculates a candidate precoding space W and transmits modulated symbol streams s=(s, . . , s) by using precoding W(e); S: Bob measures received signal strength of each antenna, estimates the corresponding antenna vector e, inversely maps the vector e to obtain key symbols and key bits, and demodulates the received symbol streams in sequence at each activated antenna to obtain demodulated ciphertext bits; S: Bob performs an XOR on observed key bits and the demodulated ciphertext bits to obtain the confidential information.