Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical quadruple frequency millimeter wave optical carrier wireless communication system

A wireless communication system, quadruple frequency technology, applied in fiber optic radio, multi-frequency code system, multi-carrier system, etc., can solve the problems of millimeter wave generation technology system complexity, high cost, etc., to achieve simplified structure, low oscillation frequency, cost reduction effect

Inactive Publication Date: 2014-11-05
DONGHUA UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing millimeter-wave generation technology system is complicated and costly, and both the base station and the mobile terminal need a millimeter-wave local oscillator source, thereby providing a simple structure, easy to implement, and low-cost optical system based on OFDM-16QAM Quadruple Frequency Millimeter Wave Optical Carrier Wireless Communication System

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
  • Optical quadruple frequency millimeter wave optical carrier wireless communication system
  • Optical quadruple frequency millimeter wave optical carrier wireless communication system
  • Optical quadruple frequency millimeter wave optical carrier wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0016] The present invention relates to an optical quadruple frequency millimeter wave optical carrier wireless communication system based on OFDM-16QAM, such as figure 1 As shown, it includes a central station 1, a base station 2 and a downlink optical fiber 3. The central station 1 and the base station 2 are connected by the downlink optical fiber 3.

[0017] The central station 1 includes a laser 11, a two-electrode Mach-Zehnder optical mo...

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 relates to an optical quadruple frequency millimeter wave optical carrier wireless communication system which comprises a center station, a base station and a downlink fiber. The center station and the base station are in fiber connection through a down link. The center station comprises a laser, a double-electrode Mach-Zehnder optical modulator and an erbium doped fiber amplifier which are in series connection in order. The double-electrode Mach-Zehnder optical modulator is used for generating a fourth harmonic side frequency component containing a cosine microwave signal, and carrying OFDM-16QAM data information. The base station is used for receiving the fourth harmonic side frequency component containing the cosine microwave signal and carried OFDM-16QAM data information, and through carrying out bias set, filtering and amplification on the received signal, a millimeter wave signal of OFDM-16QAM modulation for antenna emission is obtained. The system in the invention has the characteristics of simple structure, easy realization and low cost.

Description

Technical field [0001] The present invention relates to the field of optical wireless communication, in particular to an optical quadruple frequency millimeter wave optical wireless communication system based on OFDM-16QAM. Background technique [0002] The limited spectrum resources and limited transmission distance of wireless communication have greatly restricted its development. How to effectively use the advantages of optical communication and wireless communication and realize the integration of optical communication and wireless communication will become the development direction of future communication. Wireless communication has abundant spectrum resources in the high frequency band around 40GHz~60GHz, and does not require frequency use authorization. If it is used as a wireless signal carrier frequency, it is sufficient to realize the business needs of ultra-wideband wireless communication. Therefore, optical carrier wireless communication (referred to as "RoF ") Techno...

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): H04B10/25H04L27/26H04L27/34H04B10/2575
Inventor 陈翔陈小立
Owner DONGHUA UNIV