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Construction method for optical orthogonal codes (OOC) with cross-correlation constraint of 2

A technology of optical orthogonal code and construction method, which is applied in the field of communication, can solve problems such as impracticality and impracticability, and achieve the effect of simple construction method, fast construction speed, and large code weight value

Active Publication Date: 2018-08-07
SHENZHEN UNIV
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide an optical orthogonal code with a cross-correlation constraint of 2 for the defect that the related technology cannot realize an optical orthogonal code structure with a cross-correlation constraint of 2 for any number and any code weight, which is not practical. Cross-code construction method

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  • Construction method for optical orthogonal codes (OOC) with cross-correlation constraint of 2
  • Construction method for optical orthogonal codes (OOC) with cross-correlation constraint of 2
  • Construction method for optical orthogonal codes (OOC) with cross-correlation constraint of 2

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Embodiment Construction

[0039] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040] figure 1 It is the flow chart of the construction method of the optical orthogonal code with the cross-correlation constraint of 2 of the present invention, such as figure 1 Shown:

[0041] The method for constructing an optical orthogonal code with a cross-correlation constraint of 2 of the present invention includes the following steps:

[0042] S1. According to the number of code words n and the code weight w to be constructed, construct the integer number sequence M and the corresponding integer pair table N;

[0043] S2. According to the integer number sequence M and the integer pair table N, construct the optical orthogonal code code word mark difference distance triangle array D and the difference distance pair set T with...

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Abstract

The invention discloses a construction method for optical orthogonal codes (OOC) with a cross-correlation constraint of 2. The method comprises the following steps: constructing integer sequences M and corresponding integer pair tables N according to the number of codons to be constructed n and a code weight w; according to the integer sequences M and the integer pair tables N, constructing marking difference distance triangular matrixes D for OOC codons with the cross-correlation constraint of 2 and difference distance pair sets T according to preset number filling rules; and according to a mapping relationship formed by the marking difference distance triangular matrixes D, constructing the OOC codons with the cross-correlation constraint of 2. The method provided by the invention has the advantages that the marking difference distance triangular matrixes D for the OOC codons, in which elements of the same marking difference distance triangular matrix cannot be repeated, and the difference distance pair sets T, in which all difference distance pair elements cannot be repeated, are constructed, so that the OOC codons with the cross-correlation constraint of 2 can be effectively constructed; the number of the constructed codons and the code weight are large; and any number of the OOC codons with the cross-correlation constraint of 2 with any code weight can be constructed.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method for constructing an optical orthogonal code with a cross-correlation constraint of 2. Background technique [0002] With the development of communication technology and the improvement of technological level, people have more and more demand for communication services. In addition to ordinary telecommunications services, broadband services such as high-definition TV and video on demand also have great demand, all of which are required A broadband, real-time, multi-service website. Optical code division multiple access technology has asynchronous access, can make full use of the bandwidth of optical fiber, simple protocol, supports a large number of users to use different rates and can guarantee the quality of service (Quality of Service, QoS), no matter in the backbone network or in the called " The "first kilometer" access network has broad application prospe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J13/00H04J13/18H04J14/00
CPCH04J13/004H04J13/18H04J14/007
Inventor 李晓滨
Owner SHENZHEN UNIV
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