Secure communication method based on multi-user multi-antenna communication system and secure beamforming design
A multi-user multi-antenna and beamforming technology, applied in the field of communication, can solve problems that are not involved
Active Publication Date: 2021-01-12
DALIAN UNIV OF TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the above method proposes a variety of secure beamforming design methods for multi-antenna systems, it is mainly aimed at systems with multiple inputs and single outputs. related to
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:
[0040] Such as figure 1 A general multi-user MIMO wireless communication scenario to which the present invention is applicable is shown. As shown, the system is similar to the configuration of a cellular network, including K receiving ends (users), and each receiving end is equipped with multiple antennas. The system also includes a transmitting end (base station), and the base station is also equipped with multiple antennas, which can optimize the performance of wireless transmission by using the degree of freedom in space through beamforming technology. Among multiple receiving ends, only the first receiving end and the base station transmit confidential information, such as key informati...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a secure communication method based on a multi-user multi-antenna communication system and a secret beam forming design. The main idea of the secure communication method proposed by the invention is that: in the first stage (S1), the beam forming parameters of a secret user are first designed, and the energy of a useful signal S in the SINR of an eavesdropping end is reduced as much as possible; and in the second stage (S2), the multi-user interference of the system is rationally utilized, and the multi-user interference of the system itself is used to further reduce the component of an interference signal I at the eavesdropping end. Through the above two stages, the signal-to-interference ratio SINR of the eavesdropping end is minimized. In addition, the differencebetween the method and the artificial noise method is that the method proposes to utilize the system's own multi-user interference and enhances the security of the system by enhancing the interference component at the eavesdropping end. In addition to the interference to eavesdropping, the multi-user interfering signal carries the transmission information of the non-secret user. For the artificial noise method, the artificial noise signal often consumes a considerable amount of energy, and only serves as an interference signal to the eavesdropping system.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a secure communication method based on a multi-user multi-antenna communication system and a secret beamforming design. Background technique [0002] WLAN and cellular networks have been the most popular and successful commercial wireless communication networks in the past 20 years. With the continuous development of technologies such as VR, Internet of Vehicles, and cloud applications, higher standards have been set for wireless communication technologies that are supported by pipelines. and request. Among them, the multi-antenna technology MIMO can effectively improve communication effectiveness and reliability under the current frequency band division due to its spatial diversity, beamforming and other spatial multiplexing technical characteristics. In addition to communication efficiency, the unique beamforming of MIMO also helps to improve the security of the communic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0452H04B7/06H04B7/08H04L29/06
CPCH04B7/0452H04B7/0617H04B7/086H04L63/20
Inventor 李明遆光宇刘倩
Owner DALIAN UNIV OF TECH