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Scheduling method and device for regular tetrahedron topology network

A technology of regular tetrahedral and topological networks, which is applied in the field of scheduling of regular tetrahedral topological networks, and can solve problems such as no perfect scheduling scheme

Active Publication Date: 2019-12-31
JILIN UNIV
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  • Abstract
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Problems solved by technology

Linear topologies with three nodes or more are considered to have no perfect scheduling scheme

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  • Scheduling method and device for regular tetrahedron topology network
  • Scheduling method and device for regular tetrahedron topology network

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Embodiment Construction

[0034] 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.

[0035] It can be seen from the background technology that the existing topology structures that can support the full-connection fair and perfect scheduling scheme mainly include single point-to-point scheduling and triangle topology scheduling. Linear topologies with three nodes or more are considered to have no perfect scheduling scheme.

[0036] In view of this, the present invention provides a scheduling method and device for a regular tetrahedral topology ...

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Abstract

The invention discloses a scheduling method and device for a regular tetrahedron topological network. A first node, a second node, a third node and a fourth node in the regular tetrahedron topologicalnetwork perform data scheduling according to scheduling sequences [4, 3, 2, 0, 0, 0], [0, 0, 1, 3, 4, 0], [0, 1, 0, 2, 0, 4 and [1, 0, 0, 0, 2, 3] respectively, wherein the scheduling sequences of the four nodes form a cyclic scheduling table, the time slot length for executing the cyclic scheduling table is one third of the propagation time delay, the frame length is two times of the propagationtime delay, the number in the scheduling sequence indicates that one data packet is sent to the node corresponding to the number in the current time slot, and 0 indicates that one data packet is received in the current time slot. According to the method, propagation time delay is equally divided, so that full-connection fair and perfect scheduling of the regular tetrahedron topological network with four nodes is realized.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic networks, in particular to a scheduling method and device for a regular tetrahedral topology network. Background technique [0002] Media control protocols in underwater acoustic networks face a series of unique challenges represented by long propagation delays. Through the time-space domain application of interference alignment technology, a class of space-domain multiplexing time division multiple access characterized by long propagation delays The access protocol is proposed, and the scheduling algorithm that can achieve no idle time slot is called perfect scheduling, which is a scheduling algorithm that can make this type of protocol reach the upper limit of throughput. [0003] Existing topologies that can support full-connection fair and perfect scheduling mainly include single point-to-point scheduling and triangle topology scheduling. Linear topologies with three nodes or more...

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Application Information

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IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/0446H04W72/12
Inventor 刘军张健瑀关雯雪崔军红于美铭潘晓鹤
Owner JILIN UNIV
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