Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A constant modulus beamforming method in a secure and confidential communication system

A beamforming method and communication system technology, applied in the field of constant modulus beamforming, can solve the problems of hardware implementation cost increase, etc., achieve the effect of high frequency band utilization efficiency, reduce operation consumption, and improve energy utilization efficiency

Active Publication Date: 2020-06-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recent studies have shown that large-scale antenna array beamforming technology can effectively improve the efficiency of frequency band utilization. However, when the number of transmit antennas increases, the cost of hardware implementation will be greatly increased.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A constant modulus beamforming method in a secure and confidential communication system
  • A constant modulus beamforming method in a secure and confidential communication system
  • A constant modulus beamforming method in a secure and confidential communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0046] Such as figure 1 As shown, the constant modulus beamforming method in the secure and confidential communication system includes the following steps:

[0047] S1, initialization parameters;

[0048] S2, according to the parameter of initialization, adopt Dinkelbach algorithm to objective function value η by following formula i Iterate, get and save an objective function value η i ;

[0049]

[0050] in is the c...

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

No PUM Login to View More

Abstract

The invention discloses a constant modulus beamforming method in a safety and security system, comprising the steps of: S1, initializing parameters; S2, adopting the Dinkelbach algorithm to calculate the objective function value η according to the initializing parameters i Solve the formula to iterate, get and save an objective function value η i ; S3, using the ADMM algorithm to iteratively solve the next generation constant modulus beam w i+1 and the corresponding objective function value η i+1 ; S4, the n obtained according to step S2 i And step S3 obtains η i+1 Carry out judgment and outer layer iteration, and output constant modulus beam w i+1 . The present invention has higher frequency band utilization efficiency, and uses multi-antenna technology to improve the utilization efficiency of spectrum; the modulus length of each element in the precoding matrix of the present invention is constant and equal, so only a single radio frequency link and a simple phase The precoding of information can be realized by using a shifter, which greatly reduces the hardware cost of a large-scale antenna array. The invention fixes the transmission power of each antenna, can reduce the power consumption of the whole system, and improves the energy utilization efficiency.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a constant modulus beam forming method in a secure and confidential communication system. Background technique [0002] MISOME (Multiple-Input Single-Output Multiple-Evesdropper) is one of the commonly studied scenarios in the field of physical layer security. In a previous study [1], Khisti and Wornell derived a mathematical representation of the MISOME secrecy capacity and demonstrated that beamforming techniques can optimally achieve this secrecy capacity. Transmit beamforming technology is a simple and efficient technology for transmitting information. Recent studies have shown that large-scale antenna array beamforming technology can effectively improve the efficiency of frequency band utilization. However, when the number of transmit antennas increases, the cost of hardware implementation will be greatly increased. In order to utilize large-scale antenna arrays more ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0426H04B7/0456H04B7/06
CPCH04B7/0426H04B7/0456H04B7/0617Y02D30/70
Inventor 利强李超林静然
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com