CN105530068B - A kind of airborne wavelength division multiplexed network Wavelength allocation method based on the classification of communication protocol characteristic - Google Patents

A kind of airborne wavelength division multiplexed network Wavelength allocation method based on the classification of communication protocol characteristic Download PDF

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Publication number
CN105530068B
CN105530068B CN201510926700.8A CN201510926700A CN105530068B CN 105530068 B CN105530068 B CN 105530068B CN 201510926700 A CN201510926700 A CN 201510926700A CN 105530068 B CN105530068 B CN 105530068B
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data
rate
wavelength
low
priority
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CN105530068A (en
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王世奎
焦龙
雷宇宏
朱志强
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Xian Aeronautics Computing Technique Research Institute of AVIC
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Xian Aeronautics Computing Technique Research Institute of AVIC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention proposes a kind of airborne wavelength division multiplexed network Wavelength allocation method being classified based on communication protocol characteristic, is allocated to airborne wavelength division multiplexed network wavelength based on carrying application communication protocol characteristic, saves wavelength and occupies quantity.This method includes the following links：1) protocol rate thresholding is set, the protocol rate of the data sent will be needed to be divided into two class data of high data rate and low-rate data according to the protocol rate thresholding；2) to high data rate, each high data rate distributes independent operation wavelength and is transmitted；For low-rate data, various low-rate datas are merged and are transmitted in an operation wavelength；Wherein：To the different agreement data definition priority in low-rate data, the first transmission of high priority, the rear transmission of low priority；The data of same priority are transmitted in operation wavelength successively in chronological order.

Description

A kind of airborne wavelength division multiplexed network Wavelength Assignment based on the classification of communication protocol characteristic Method
Technical field
The invention belongs to network communication technologies, are related to a kind of method of airborne wavelength division multiplexed network medium wavelength distribution.
Background technology
The following avionics system is the Unified Network of a kind of high bandwidth, big handling capacity.It requires hard real-time and Gao Rong Wrong network performance needs flexibly scalable network structure, and needs to support the parallel processing of extensive processor.WDM Network has been well adapted for the demand of the following universal avionics networks, it has on single fiber while transmitting the mould of large capacity The ability of digital signal is fitted, each wavelength is independent transmission channel；It is good that its transparent transmission makes avionics system have Good inheritance；WDM wavelength routed networks flexible structures are scalable, have good adaptability to the variation of avionics network task. However for the Wavelength Assignment of wavelength-division multiplex onboard networks, there is no specified in more detail at present.
Invention content
The present invention proposes a kind of method of the Wavelength Assignment of optical wavelength division multiplexing onboard networks, multiple to airborne wavelength-division based on agreement It is allocated with network wavelength, saves the occupied number of wavelengths of data transmission.
Technical scheme of the present invention：
Based on the airborne wavelength division multiplexed network Wavelength allocation method of communication protocol characteristic classification, include the following links：
1) protocol rate thresholding is set, the protocol rate of the data sent will be needed to be divided into height according to the protocol rate thresholding Two class data of speed data and low-rate data；
2) to high data rate, each high data rate distributes independent operation wavelength and is transmitted；
For low-rate data, various low-rate datas are merged and are transmitted in an operation wavelength；Wherein：To difference Protocol data defines priority, the first transmission of high priority, the rear transmission of low priority；The data of same priority are temporally suitable Sequence is transmitted in operation wavelength successively.
It is (such as multiple when transmitted data amount is more than instantaneously operation wavelength bandwidth for low-rate data based on above scheme Data source is competed using operation wavelength simultaneously), distribution back-up job wavelength carries out transmission data in short-term.
Include to parameter based on different agreement data definition priority：Data type, real-time index, transmission rate Index and service quality (QOS).
The present invention has the following advantages：
This method carries out upper layer division to wavelength-division multiplex wavelength available, saves the occupied number of wavelengths of data transmission. Only wavelength access need to be carried out according to present inventive concept, optical wavelength division multiplexing onboard networks wavelength can be efficiently used.
Description of the drawings
Fig. 1 is that the airborne wavelength division multiplexed network operation wavelength being classified based on traffic rate sorts out distribution diagram.
Fig. 2 is the rule schema that low-rate data according to priority uses optical wavelength.
Specific implementation mode
Airborne wavelength division multiplexed network has on single fiber while transmitting the ability of the analog and digital signal of large capacity, often A wavelength is all independent transmission channel, can transmitting high speed data stream.
By parameters such as data type, real-time, rate speed, priority, different agreement data are classified, rate The protocol data high, real-time is high occupies individual wavelengths and is transmitted, and all data of low rate protocol groups use a wavelength Carry out data transmission.
Specifically, in the present invention, wavelength-division multiplex wavelength available is divided, wavelength available is divided into operation wavelength With backup wavelength, operation wavelength and backup number of wavelengths are determined according to different network systems situation, when event occurs in certain operation wavelength When transmission congestion occur in barrier or operation wavelength, it is transmitted using backup wavelength.
In operation wavelength and on the basis of backup wavelength, definition protocol hierarchy characterisitic parameter includes real-time, transmission rate, excellent First grade, according to different parameters characteristic, the operation wavelength occupied to different agreement transmission carries out classification distribution, and allocation rule is as follows：
1) the high occupancy individual wavelengths of rate high (1Gbps or more), real-time are transmitted, and as meet the association of the condition It discusses Dynamic data exchange and distributes a certain determining wavelength, the Dynamic data exchange of all the type is transmitted using respective corresponding wavelength.
2) data of low rate occupy Same Wavelength and carry out data transmission jointly, and it is a certain really as to meet protocol data distribution Standing wave is long.To different agreement data definition priority, the data of same priority are passed in operation wavelength in chronological order It is defeated, the first transmission of high priority, the rear transmission of low priority.When entire transmitted data amount is big, instantaneous is more than operation wavelength bandwidth When, backup wavelength transmission data in short-term can be borrowed.
If lower-priority data occupies in operation wavelength transmission process, detect that high-priority data is initiated transmission and asked It asks, lower-priority data terminates in the operation wavelength transmitting data after present frame, and subsequent frame is then switched to standby Part wavelength carries out data transmission.

Claims (3)

1. a kind of airborne wavelength division multiplexed network Wavelength allocation method based on the classification of communication protocol characteristic, includes the following links：
1) protocol rate thresholding is set, the protocol rate of the data sent will be needed to be divided into high-speed according to the protocol rate thresholding Two class data of data and low-rate data；
2) to high data rate, each high data rate distributes an independence and the different operation wavelength of wavelength is transmitted；
For low-rate data, various low-rate datas are merged in an operating wave different from high data rate occupancy wavelength Length is transmitted；Wherein：To different agreement data definition priority, the first transmission of high priority, the rear transmission of low priority；Together The data of one priority are transmitted in operation wavelength successively in chronological order.
2. the airborne wavelength division multiplexed network Wavelength allocation method according to claim 1 based on the classification of communication protocol characteristic, It is characterized in that：For low-rate data, when transmitted data amount is more than instantaneously operation wavelength bandwidth, distribution back-up job wavelength into Capable transmission data in short-term.
3. the airborne wavelength division multiplexed network Wavelength allocation method according to claim 1 based on the classification of communication protocol characteristic, It is characterized in that：Include to parameter based on different agreement data definition priority：Data type, real-time index, transmission speed Rate index and service quality.
CN201510926700.8A 2015-12-11 2015-12-11 A kind of airborne wavelength division multiplexed network Wavelength allocation method based on the classification of communication protocol characteristic Active CN105530068B (en)

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CN101093264A (en) * 2006-06-23 2007-12-26 北京大学 Method for solving link configuration and wavelength allocation competed in OBS by using parallel light fiber
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