Spectrum allocation method, device and storage medium for space division multiplexing optical network
A spectrum allocation and optical multiplexing technology, applied in the field of communication, can solve the problems of complex resource allocation algorithm and complex resource availability measurement, and achieve the effects of reducing service blocking rate, improving spectrum resource utilization, and improving user experience.
Active Publication Date: 2020-10-02
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
When multi-core, few-mode or multi-core few-mode fiber is used as the transmission medium in the optical network, the introduction of crosstalk factors makes the resource allocation algorithm of the network layer more complicated
In the space division multiplexing optical network, due to the increase of resource dimensions, the measurement of resource availability becomes complicated. How to use spectrum resources more efficiently, ensure the quality of service transmission, and reduce the connection blocking rate under the premise of considering crosstalk Problems Worth Studying in Multiplexed Optical Networks
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[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0030] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.
[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0032] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, techniques, methods and devices should be considered part of the description. ...
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The invention discloses a spectrum allocation method, an apparatus and a storage medium for a space division multiplexing optical network, wherein the method comprises the following steps: determininga plurality of alternative paths for transmitting a traffic stream; sequentially calculating the cores of all the fiber cores in each path segment; and calculating the cores of all the fiber cores ineach path segment. Spectrum two-dimensional resource available values and based on core Sorting the fiber cores from high to low order of spectrum two-dimensional resource available values; Selectingthe core as the candidate core in each path segment of the alternative path according to the sorting order, and taking the candidate core as the transmitting core if the continuous spectrum resourceselected in the candidate core satisfies the preset crosstalk requirement; Establishing a core transmission path for transmitting a traffic flow based on the transmitting core; The method, device andstorage medium of the present invention preferentially selects a core. The core with the largest available value of spectrum two-dimensional resources can be used to screen the continuous available spectrum resources, which can reduce the blocking rate of service and improve the utilization of spectrum resources, and improve the user 's perception of use.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a spectrum allocation method, device and storage medium for space division multiplexing optical network. Background technique [0002] With the rapid development of information and communication technology, the rise of Internet +, Industry 4.0, big data, cloud computing and other applications has led to an increasing demand for optical communication network capacity. Space-division multiplexing optical network has a good development prospect as a method to break the communication capacity limit of single-mode optical fiber network. Space division multiplexing includes multi-core multiplexing and mode multiplexing. At present, multi-core, few-mode or multi-core few-mode optical fibers are used as transmission media, and the system capacity has been increased by more than 100 times. For example, multi-core single-mode fiber constructs multiple parallel spatial chann...
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IPC IPC(8): H04Q11/00
CPCH04Q11/0005H04Q11/0062H04Q2011/0086
Inventor 杨辉姚秋彦张杰于奥
Owner BEIJING UNIV OF POSTS & TELECOMM