scholarly journals Analyzing the code structures of multidimensional signals for a continuous information transmission channel

2021 ◽  
Vol 5 (9 (113)) ◽  
pp. 70-81
Author(s):  
Liubov Berkman ◽  
Olexandr Turovsky ◽  
Liudmyla Kyrpach ◽  
Oksana Varfolomeeva ◽  
Volodymyr Dmytrenko ◽  
...  
Keyword(s):  
Information Transmission ◽  
Transmission Channel ◽  
Quality Of Information ◽  
Euclidean Metric ◽  
Telecommunication Systems ◽  
Multidimensional Signals ◽  
Code Structure ◽  
Multidimensional Signal ◽  
Hierarchical Code

One of the directions to improve the efficiency of modern telecommunication systems is the transition to the use of multidimensional signals for continuous channels of information transmission. As a result of studies carried out in recent years, it has been established that it is possible to ensure high quality of information transmission in continuous channels by combining demodulation and decoding operations into a single procedure that involves the construction of a code construct for a multidimensional signal. This paper considers issues related to estimating the possibility to improve the efficiency of continuous information transmission channel by changing the signal distance of the code structure. It has been established that the code structures of such types as a hierarchical code construct of signals, a hierarchical code construct of signals with Euclidean metric, a reversible code construct of signals, a reversible code construct of signals with Euclidean metric have the potential, when used, to increase the speed of information transmission along a continuous channel. With a signal distance reduced by 10 percent or larger, it could increase by two times or faster. The estimation of the effect of reducing a signal distance on the efficiency of certain types of code structures was carried out. It has been established that the hierarchical reversible code construct, compared to the hierarchical code construct, provides a win of up to two or more times in the speed of information transmission with a halved signal distance. Implementing the modulation procedure has no fundamental difficulties, on the condition that for each code of the code construct the encoding procedure is known when using binary codes. The results reported here make it possible to build an acceptably complex demodulation procedure according to the specified types of code structures

Improving the quality of noisy spatial quantum channels

2015 ◽  
Vol 15 (7&8) ◽  
pp. 568-581
Author(s):  
Ning Tang ◽  
Zi-Long Fan ◽  
Hao-Sheng Zeng
Keyword(s):  
Information Transmission ◽  
Quantum Channel ◽  
Physical Mechanism ◽  
Time Dependent ◽  
Quantum Channels ◽  
Markovian Model ◽  
Quality Of Information

We show, for the non-Markovian or time-dependent Markovian model of noise, by breaking the noisy spatial quantum channel (SQC) into a series of periodically arranged sub-components, that the quality of information transmission described by the purity, fidelity and concurrence of the output states can be improved. The physical mechanism and possible implementation of the idea have been discussed.

METHODOLOGY FOR SUBSTANTIATING THE RATIONAL ROUTE OF INFORMATION TRANSMISSION IN THE INFORMATION AND TELECOMMUNICATION NETWORK IN THE CONDITIONS OF THE COMPLEX IMPACT OF THE ENEMY

2020 ◽  
Author(s):  
С.А. БАГРЕЦОВ ◽  
Н.Б. АЧКАСОВ ◽  
О.С. ЛАУТА ◽  
Д.Ю. ВАСЮКОВ
Keyword(s):  
Information Transmission ◽  
Shortest Path ◽  
Transfer Process ◽  
Data Exchange ◽  
Data Transfer ◽  
Telecommunication Network ◽  
Quality Of Information ◽  
Transfer Path ◽  
The Stability

Представлены подходы к повышению устойчивости функционирования информационно-телекоммуникационной сети, которые способствуют оптимизации процесса передачи данных среди обменников информации за счет повышения быстродействия и нахождения оптимального пути передачи данных. Отмечается, что сокращение времени обмена информацией между абонентами будет происходит по наиболее короткому пути и это должно существенно повлиять на качество информации,ее важность и необходимость при ведении боевых действий в условиях радиоэлектронного противодействия противника. Various approaches to improving the stability of telecommunications networks, which lead to optimizing the data transfer process by increasing the speed and finding the most optimal data transfer path, are presented. It is noted that the reduction of the data exchange time between subscribers will occur along the shortest path, which will significantly affect the quality of information, its importance, and the need for conducting combat operations in the condition of electronic counteraction of the enemy.

scholarly journals The loser's curse in the search for advice

2019 ◽  
Vol 14 (3) ◽  
pp. 1015-1061
Author(s):  
Pak Hung Au
Keyword(s):  
Social Welfare ◽  
Information Transmission ◽  
Information Aggregation ◽  
Sufficient Condition ◽  
Necessary And Sufficient Condition ◽  
Search Cost ◽  
Quality Of Information ◽  
Multiple Experts ◽  
Necessary And Sufficient

An agent searches sequentially for advice from multiple experts concerning the payoff of taking an operation. After incurring a positive search cost, the agent can consult an expert whose interest is partially aligned with him. There are infinitely many experts, each has access to an identically and conditionally independent signal structure about the payoff, and each makes a recommendation after observing the signal realization. We find that the experts face a loser's curse, which could hamper the quality of information transmission. This effect is illustrated by studying the limit of equilibria with vanishing search cost. The main findings are as follows. First, there are signal structures with which both the agent's payoff and social welfare are strictly lower than the alternative scenario in which the agent commits to consulting a single expert only. Second, under some signal structures, no information can be transmitted in equilibrium, even though informative recommendation is possible if the agent could commit to a single expert. Finally, we identify the necessary and sufficient condition that ensures perfect information aggregation in the limit.

scholarly journals Blind Identification of Transmission Channel with the method of Higher-OrderCummulants

2013 ◽  
Vol 10 (2) ◽  
pp. 1294-1301
Author(s):  
Imad Badi ◽  
Mohammed Boutalline ◽  
Said Safi
Keyword(s):  
Blind Identification ◽  
Transmission Channel ◽  
Channel Identification ◽  
Trade Off ◽  
Transmission Rates ◽  
Blind Channel Identification ◽  
Telecommunication Systems ◽  
Blind Channel ◽  
Very High

The modern telecommunication systems require very high transmission rates, in this context, the problem of channels identification is a challenge major. The use of blind techniques is a great interest to have the best compromise between a suitable bit rate and quality of the information retrieved. In this paper, we are interested to learn the algorithms for blind channel identification. We propose a hybrid method that performs a trade-off between two existing methods in order to improve the channel estimation.

Investigation into Influences of Visual Apparatus Sensor and Executor Characteristics on the Quality of Information Transmission to Sensory Organs

2006 ◽  
Vol 113 ◽  
pp. 45-49
Author(s):  
Mečislovas Mariūnas ◽  
A. Šešok
Keyword(s):  
Information Transmission ◽  
Information Transfer ◽  
Reading Level ◽  
Sensory Organs ◽  
Quality Of Information ◽  
Visual Aid ◽  
The Disabled ◽  
Visual Apparatus

Analysis into the effects of parametric characteristics of visual aid on the perception level of information transmitted has led to the possibility of examining and determining the quality of the reading level as a function of certain parameters of a digital apparatus (sensor), the distance to the text, the size of letters and the intensity of light. Efforts have been made to evaluate the effect of the specifications of the executor as well as the information transfer (by tactile way) speed onto the sensory organs of the disabled person at the perception level. A choice has been made of rational information transfer speeds and appropriate visual aid characteristics to facilitate an adequate perception level.

scholarly journals Features of the fiber-optics data system using optical solitons

2021 ◽  
Vol 2086 (1) ◽  
pp. 012139
Author(s):  
A A Ermolaev ◽  
M A Shevchenko ◽  
E I Andreeva
Keyword(s):  
Information Transmission ◽  
Fiber Optics ◽  
High Speed ◽  
Optical Solitons ◽  
Data System ◽  
Input Output ◽  
Quality Of Information ◽  
Symbol Sequence

Abstract The analysis of the parameters of a high-speed information data system using dispersion-managed solitons is carried out. It is shown that the quality of information transmission can be increased by choosing the input-output point of the symbol sequence on the dispersion map.

PENGARUH KUALITAS INFORMASI DAN KUALITAS LAYANAN TERHADAP SIKAP DALAM PENGGUNAAN SISTEM APLIKASI DENGAN KEMUDAHAN PENGGUNAAN SEBAGAI VARIABEL INTERVENING PADA JASA TRANSPORTASI ONLINE (GOJEK) DI YOGYAKARTA

2019 ◽  
Vol 27 (2) ◽  
pp. 119-133
Author(s):  
Putri Aprilia Isnaini ◽  
Ida Bagus Nyoman Udayana
Keyword(s):  
Social Media ◽  
Quality Of Service ◽  
Information Quality ◽  
Sampling Technique ◽  
Ease Of Use ◽  
Quality Of Services ◽  
Quality Of Information ◽  
Transportation Services ◽  
Application Systems

This writing is done to determine the effect of information quality and service quality on attitudes in the use of application systems with the ease of use of the system as an intervining variable in online transportation services (gojek) in Yogyakarta. The sample in this study is customers who use online motorcycle transportation services in Yogyakarta. The sampling technique uses accidental sampling technique. Data collection is done by distributing online questionnaires through the Goegle form and distributed with social media such as WhatsApp and Instagram on a 1-4 scale to measure 4 indicators. The results of this study show 1) the quality of information affects the ease of use, 2) the quality of service affects the ease of use, 3) the quality of information influences attitudes in use, 4) the quality of services does not affect attitudes in use, and 5) ease of use attitude in use.

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