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A Design Method of Ethernet Model Based on Slotted Non-persistent CSMA

A model design, Ethernet technology, applied in transmission systems, electrical components, etc., can solve problems such as data transmission conflicts in Ethernet networks, achieve the effects of reducing data conflicts, shortening the research and development cycle, and ensuring reliability

Active Publication Date: 2022-04-01
CHANGCHUN UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose an Ethernet model design method based on time slot non-persistence CSMA in view of the data transmission conflicts existing in the existing Ethernet network

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings. Such as figure 1 As shown, the design method of the present invention is mainly divided into three parts: the industrial Ethernet network channel transmission structure model, the industrial Ethernet network transmission protocol improvement model and the industrial Ethernet network data transmission capture effect model, and thus builds the industrial Ethernet network Communication system model.

[0021] First of all, the present invention models path loss and shadow fading in the channel model, thus ensuring the stability of changes caused by distance and obstacles during data transmission; after ensuring channel stability, focus on non-adherence to the CSMA protocol in the original time slot, The original time slot is subdivided, the data packet can only be transmitted in the subdivided time slot, and the data packet generated in the current time slot can o...

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Abstract

The invention relates to a method for designing an Ethernet model based on a CSMA protocol, in particular to a method for designing an Ethernet model based on a time slot non-persistent CSMA. Including the establishment of industrial Ethernet network channel transmission structure model, transmission protocol improvement model and network data transmission capture effect model. Taking the existing time slot non-persistent CSMA protocol as the main research protocol, the new time slot required for data transmission is obtained by re-segmenting the time slot in the existing protocol, and the capture effect is applied to the new protocol, thereby establishing the Ethernet Network model, so as to analyze the transmission characteristics of Ethernet network transmission data; compared with the original time slot non-persistent CSMA protocol model, the established model is more real-time and reliable. At the same time, the model established not only reduces defects such as channel conflicts and unutilization, but also improves the real-time performance of the industrial Ethernet network, and greatly improves the data transmission effect of the industrial Ethernet network.

Description

technical field [0001] The invention relates to an Ethernet model design method based on the CSMA protocol, in particular to an Ethernet model design method based on time slot non-persistence CSMA, which can be used to solve the problem of channel transmission conflicts and unused channels in industrial Ethernet communication network systems. The reliability and real-time decline of the industrial Ethernet network system caused by the defects such as the network system provide a basic platform for the application and theoretical research of the industrial Ethernet communication network. Background technique [0002] Ethernet (Ethernet) is a network that follows the IEEE802.3 standard and can be transmitted on optical cables and twisted-pair wires. It is also the most common communication protocol standard used by existing local area networks today. There are four types of 1Gbit / s and 10Gbit / s, which can meet the fast, real-time and reliable control requirements of Ethernet, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/14
CPCH04L41/145
Inventor 王宏志戚小莎王晓宇胡黄水
Owner CHANGCHUN UNIV OF TECH