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Optical quadruple frequency millimeter wave optical carrier wireless communication system

A wireless communication system, quadruple frequency technology, applied in multi-carrier system, multi-frequency code system, optical fiber radio and other directions, can solve the problems of high cost and complex millimeter wave generation technology system, achieve simplified structure, low oscillation frequency, cost reduction effect

Inactive Publication Date: 2012-01-18
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • 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

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Embodiment Construction

[0015] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended 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 the present application.

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

[0017] The central station 1 includes a laser 11 , a dual-electrode Mach...

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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 invention relates to the field of optical wireless communication, in particular to an OFDM-16QAM-based optical quadruple frequency millimeter wave optical wireless communication system. Background technique [0002] The limited spectrum resources and limited transmission distance of wireless communication greatly restrict its development. How to effectively use the advantages of optical communication and wireless communication to 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 40 GHz to 60 GHz, and does not require frequency authorization. If it is used as the carrier frequency of wireless signals, it is sufficient to meet the business requirements of ultra-broadband wireless communication. Therefore, wireless communication over optical ("RoF" for short) ”) technology cam...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04L27/26H04L27/34H04B10/2575
Inventor 陈翔陈小立
Owner DONGHUA UNIV
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