Modified Protocols of Aggressive Packet Combining scheme with Consideration of Physical Level Representation for better and smooth data Transmission

The influence of the twisting steps of twisted pairs of horizontal LAN cables of category 6 on the primary and key secondary parameters of the electrical transmission medium of infocommunication systems is investigated. The primary parameters are investigated, which make it possible to determine the secondary parameters of a symmetrical conductive path: wave impedance and attenuation coefficient. It is shown that, with respect to a twisted pair with the smallest twist pitch, it is expedient to apply the high-frequency model to calculate the electric transmission path.

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INCREASING OF SECURITY DURING INFORMATION TRANSFERING AT PSYCICAL LEVEL

Issues of radio electronics ◽

10.21778/2218-5453-2018-11-59-62 ◽

2018 ◽

pp. 59-62

Author(s):

O. S. Makarova

Keyword(s):

Data Transmission ◽

Automatic Monitoring ◽

Communication Line ◽

Random Component ◽

Fisher Criterion ◽

Software Complex ◽

Technical Requirements ◽

Prediction Technique ◽

Physical Level ◽

Transfer Of Information

The need and the urgency of the task of ensuring the safe transfer of information relevant to the security of the country is obvious in view of its particular importance. In the study of data protection for this kind of data, it was revealed that the most optimal and effective is the development of a hardware and software complex that identifies potential attacks aimed at data transmission systems at the physical level, and also implements an attack prediction technique that is more accurate and takes into consideration the random component of this process. The theory of the coherent lower previsions theory of Peter Walley laid the basis of the technique for predicting attacks. The implemented equipment is designed for testing communication channels at the physical level. A special feature of this device is automatic monitoring of both the output parameters of the device itself and the parameters of the communication line for compliance with regulatory and technical requirements. After a formalized statement of the problem and information about the initial data, a measurement of the accuracy of the forecasting model is made by means of the Fisher criterion. The results of the implementation showed that the number of prevented attacks as a result of the implementation of the developed software complex has increased.

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Method of Data Transmission for Penetration Information Based on Flexible Connecting Cable

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.300-301.649 ◽

2013 ◽

Vol 300-301 ◽

pp. 649-652

Author(s):

Shi Zhong Li ◽

Ya Zhang ◽

Xin Bin Zhang

Keyword(s):

Data Transmission ◽

High Speed ◽

Working Environment ◽

Transmission Channel ◽

Data Recording ◽

Testing Method ◽

High Pressure High Temperature ◽

Testing Data ◽

Key Techniques ◽

Smooth Data

Because of the abominable working environment caused by the strong defense capability of hard target, such as high speed, high overload, high pressure, high temperature, dust debris and so on, it is difficult to obtain reliably the testing data during penetration of ammunition. Aimed at this problem, a testing method is put forward, which can deliver penetrating data in real-time using a flexible connecting cable to ensure the smooth data transmission channel. And its key techniques, including unlatching and releasing technique, flexible connecting technique, data recording/transmitting technique, are analyzed. The study will provide a practical and effective testing means for experiments of the penetration ammunition.

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