Resource reservation method for time-slotted optical burst switching network based on quasi-success power matrix
A technology of optical burst switching and network resources, which is applied in the field of resource reservation based on the quasi-success rate matrix, which can solve the problems of high probability of burst packet collision and large network packet loss rate, so as to reduce the discarding rate and reduce the processing burden , the effect of reducing the number of
Active Publication Date: 2019-10-15
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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In a general optical burst switching network, the probability of collision between burst packets is high, resulting in a large packet loss rate in the network
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] A time slot optical burst switching network resource reservation method based on the quasi-success rate matrix, which periodically updates the quasi-success rate matrix according to the reserved situation of the time slot; The number of time slots that need to be reserved is calculated based on the number of burst packets in the cache queue. Each source node will uniformly calculate the number of time slots that need to be reserved for each destination ...
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The invention provides a time slot optical burst switching network resource reservation method based on a quasi success rate matrix. The method comprises the following steps: periodically updating thequasi success rate matrix according to the reservation quasi success conditions of the time slots at different intermediate nodes on a path from a source node to each destination node, and when a newtime slots needs to be reserved, calculating the number of time slots needing to be reserved for each destination node according to the quasi success rate matrix and a burst packet number vector. According to the time slot optical burst switching network resource reservation method provided by the invention, short-range burst packets are transmitted by the quasi success time slot, the number of actual time slots reserved for each destination node is calculated, so that the number of the actual time slots reserved for each destination node is matched with the number of current burst packets, thereby reducing the loss rate of the burst packets, reducing the number of control packets to be processed in the network and reducing the processing burden of a network control layer.
Description
technical field [0001] The invention relates to the technical field of optical networks, in particular to a resource reservation method based on a quasi-success rate matrix in a time-slot optical burst switching network. Background technique [0002] In the traditional optical network, the working mode of "optical transmission-electrical switching" is adopted. With the development of optical transmission technology, the improvement speed of nodes' processing capacity in the electrical domain can no longer keep up with the increase speed of optical link transmission capacity, resulting in The "electronic bottleneck". In order to solve the electronic bottleneck problem, scholars have proposed a solution of all-optical switching. All-optical switching refers to the switching technology in which the signal is directly switched to the corresponding output port in the optical domain without undergoing "optical-electrical-optical" conversion at the intermediate node. Optical Burs...
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IPC IPC(8): H04L12/911H04L12/931
Inventor 袁俊岭张静徐晋张启坤张迪任忠保
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY