A Construction Method of Strictly Correlation Constrained Optical Orthogonal Signature Graphical Code

A technology related to constraints and construction methods, applied in the field of communication, can solve the problems of lack of construction methods and the inability to expand the optical orthogonal signature graphic code, and achieves the effects of fast construction speed, large code weight value, and large quantity

Active Publication Date: 2020-02-21
SHENZHEN UNIV
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the technology for constructing optical orthogonal signature pattern codes cannot be expanded to construct optical orthogonal signature pattern codes with any code weight and number of code words, and the construction method is not practical. A Construction Method of Strictly Correlation Constrained Optical Orthogonal Signature Graphical Codes

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  • A Construction Method of Strictly Correlation Constrained Optical Orthogonal Signature Graphical Code
  • A Construction Method of Strictly Correlation Constrained Optical Orthogonal Signature Graphical Code
  • A Construction Method of Strictly Correlation Constrained Optical Orthogonal Signature Graphical Code

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[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] figure 1 It is a flow chart of the construction method of the strict correlation constraint optical orthogonal signature pattern code of the present invention, as figure 1 Shown:

[0036] The construction method of the strict correlation constraint optical orthogonal signature pattern code of the present invention comprises the following steps:

[0037] S1. Construct an integer pair table N according to the number of code words n and the code weight w of the strictly correlated constrained optical orthogonal signature pattern code constructed as required;

[0038] S2. According to the integer pair table N, according to the preset number access rules, construct a strictly correlated and constrained optical ortho...

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Abstract

The invention discloses a construction method for a strict correlation constraint OOSPC (optical orthogonal signature pattern code), and the method comprises the following steps: constructing N (integral number) pairs of tables according to the number n of code words and code weight w of the strict correlation constraint OOSPC; constructing a code word mark two-dimensional difference distance triangular matrix Di (i=1, 2, ..., n) of the strict correlation constraint OOSPC according to the N pairs of tables and a preset access rule; and constructing the code words of the strict correlation constraint OOSPC according to a mapping relation formed by the mark two-dimensional difference distance triangular matrix Di (i=1, 2, ..., n). Through constructing the mark two-dimensional difference distance triangular matrix Di (i=1, 2, ..., n) and constructing the code words of the strict correlation constraint OOSPC according to the mapping relation, the number of code words and value of the codeweight of the strict correlation constraint OOSPC which can be effectively constructed through the method are big, and the method can achieve the construction of the strict correlation constraint OOSPCs with any code .weight and any number of code words.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for constructing a strict correlation constrained optical orthogonal signature pattern code. Background technique [0002] Optical code-division multiple access (OCDMA) technology is the application of code-division multiple access technology in optical fiber communication. It adopts optical processing and allows multiple users to share the same channel. It has the advantages of fast processing speed, flexible access, no need for switching, arbitrary address selection, and full use of optical fiber bandwidth resources. Today, with the continuous growth of communication services, it has broad application prospects in access networks and increasing the capacity of existing communication networks. [0003] Although optical code division multiple access can make full use of the bandwidth resources of optical fibers, when the information rate exceeds tens of Gb / s, it ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J13/12H04J14/00H04L9/32
CPCH04J13/12H04J14/007H04L9/3247
Inventor 李晓滨卢立志
Owner SHENZHEN UNIV
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