A 2d-spm digital wireless communication method based on time-reversal electromagnetic wave lattice focusing

A technology of time reversal and digital wireless, which is applied in radio transmission systems, electrical components, and prevention/detection of errors through diversity reception, etc. It can solve problems such as not being seen, reduce spacing, improve space utilization efficiency, and increase spectrum Effect of Utilization Efficiency and System Capacity

Inactive Publication Date: 2019-04-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been seen that TR is introduced into the field of airspace digital wireless communication, and the time-reversed electromagnetic wave focusing state on the two-dimensional space position is used to transmit information

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 2d-spm digital wireless communication method based on time-reversal electromagnetic wave lattice focusing
  • A 2d-spm digital wireless communication method based on time-reversal electromagnetic wave lattice focusing
  • A 2d-spm digital wireless communication method based on time-reversal electromagnetic wave lattice focusing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, so as to understand the features and advantages of the present invention more clearly.

[0036] The wireless communication system block diagram of the present invention is as figure 1 shown. The central operating frequency of the array antenna unit at the transmitting end of the system in the embodiment of the present invention is 2.45 GHz, and the number of array antennas is M=40. The array antennas are arranged at equal intervals and surround the array antennas at the receiving end of the system in a square shape. The array line at the receiving end of the system is a 4×4 square antenna array with equal spacing, and the number of array element antennas is N=16; the distance between the above array element antennas is less than one-half of the working wavelength. like figure 2 As shown, it is a schematic diagram of the plan...

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 belongs to the technical field of wireless communication, and provides a two-dimensional spatial position modulation (2D-SPM) digital wireless communication method based on time-reversal electromagnetic wave lattice focusing. The method combines antenna array technology and space-time "point" of TR electromagnetic waves Focusing principle, at the transmitting end of the system, multiple channels of binary bit sequences to be transmitted are concurrently "mapped" to multiple TR carriers corresponding to the array antenna to realize parallel two-dimensional space position modulation of multiple binary digital signals; at the system's At the receiving end, based on the TR electromagnetic wave focusing transmission mechanism, it is expected that a synchronous focusing lattice will be formed at the grid point position in two-dimensional space, and the 2D-SPM information will be realized by observing the presence or absence of the focusing point at each grid point position by using the signal peak strength judgment criterion. demodulation. The invention can simplify the complexity of the system receiver; realize the high-density arrangement of antenna units in a limited space; improve the communication capacity, information transmission rate and spectrum utilization efficiency of the digital wireless communication system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a spatial position modulation and demodulation wireless communication method, in particular to a two-dimensional spatial position modulation (Two Dimensional Spatial Position Modulation, 2D-SPM) digital wireless communication method. Background technique [0002] With the advent of the big data era, the communication capacity, information transmission rate and spectrum utilization efficiency of wireless communication systems are facing new challenges. However, due to the limited spectrum resources and the inherent bandwidth limitations of electronic devices, it is difficult to implement the scheme of improving the performance of wireless communication systems such as data transmission rate and spectrum utilization by simply expanding the spectrum width. Therefore, seeking a new wireless communication solution based on existing spectrum resources has become an import...

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 & AuthorityPatents(China)
IPC IPC(8): H04B7/0413H04L1/06
CPCH04B7/0413H04L1/06
Inventor赵德双郭子珍郭洪龙王秉中
OwnerUNIV OF ELECTRONICS SCI & TECH OF CHINA