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Digital Communications and Networking
Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan
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Articles 1 - 6 of 6
Full-Text Articles in Computer Engineering
Improving Noise Immunity And Efficiency Using High-Precision Iterative Codes, Sherzod Shukhratovich Atadjanov, Aziza Ahmadjanovna Tursunova
Improving Noise Immunity And Efficiency Using High-Precision Iterative Codes, Sherzod Shukhratovich Atadjanov, Aziza Ahmadjanovna Tursunova
Bulletin of TUIT: Management and Communication Technologies
The article discusses the issues of ensuring noise immunity in digital broadcasting systems, shows the importance of the transition to the optimal code and the need to use it in the field of noiseless coding in various areas of telecommunication transmission and reception of digital signals. The previous algorithms and error-correcting coding methods based on the Gray code, which are used in multi-level digital broadcast modulation schemes to minimize the intensity of bit errors, are highlighted. A model of error-correcting coding by the Gray method and methods for estimating the probability of error for the Gray code are presented. Based …
Modern Methods Of Testing And Information Security Problems In Iot, Halim Khujamatov, Ernazar Reypnazarov, Amir Lazarev
Modern Methods Of Testing And Information Security Problems In Iot, Halim Khujamatov, Ernazar Reypnazarov, Amir Lazarev
Bulletin of TUIT: Management and Communication Technologies
This article analyzes the technology of the internet of things, ie its architecture, communication standards, threats to security and safety, methods and types of testing devices of the internet of things. In short, the architectures proposed by ITU-T and IWF, IEEE standards for Internet of Things, LPWAN standards, four levels of security (devices/gateways, network/transport, services and applications), components according to test methods, performance, loading, security, etc.
Evaluation Of Characteristics Of Wireless Sensor Networks With Analytical Modeling, Halim Khujamatov, Ernazar Reypnazarov, Doston Hasanov, Elaman Nurullaev, Shahzod Sobirov
Evaluation Of Characteristics Of Wireless Sensor Networks With Analytical Modeling, Halim Khujamatov, Ernazar Reypnazarov, Doston Hasanov, Elaman Nurullaev, Shahzod Sobirov
Bulletin of TUIT: Management and Communication Technologies
In this paper, a mathematical model of the operation process of the ZigBee standard wireless network for remote monitoring systems based on the Markov chain apparatus was developed. Using the model was evaluated of the operation process of the CSMA/CA algorithm of the MAC level of the IEEE 802.15.4 ZigBee standard. The peculiarity of this mathematical model is that it takes into account the level of loading of network elements and potential distortions in the transmitted packets as a result of the influence of interference. Using the developed mathematical model, the main characteristics of the network operation process, such as …
The Role Of Network Components In Improving The Reliability And Survivability Of Mobile Communication Networks, Dilmurod Davronbekov, Utkir Karimovich Matyokubov
The Role Of Network Components In Improving The Reliability And Survivability Of Mobile Communication Networks, Dilmurod Davronbekov, Utkir Karimovich Matyokubov
Acta of Turin Polytechnic University in Tashkent
This article compares the different architectures of mobile communication networks (MCN) and examines the survivability of the network. Typical survival strategies for improving MCN survivability, failure mitigation strategies for network elements, wireless network survival rates, failure scenarios at MCN levels, and survival indicators are presented. The importance of fiber-optic communication in the construction of communication lines between MCN components has been studied. The issue of designing MCNs in a cost-effective and highly viable way is considered, and the necessary expressions of the design process are given.
Cloud Technologies In Islamic Education Institutions, Alimjon Dadamuhamedov Irgashevich
Cloud Technologies In Islamic Education Institutions, Alimjon Dadamuhamedov Irgashevich
The Light of Islam
Information and Communication Technology is making use of ICT tools to store and retrieves information. It plays an important role in growing and maintaining a country’s economic growth. One of the latest technologies prevailing nowadays is cloud computing. By sharing IT services as platform-based, software-based, and infrastructure-based in the cloud, educational institutions in Uzbekistan can now out-source non-core services and better concentrate on offering students, teachers, faculty and other staff the essential tools to help them succeed. This paper looks at how Cloud Computing can be applied in the study of ICT and focuses on the role of cloud computing …
Algorithms For Data Reliability Based On A Cryptographic Distributed Database (Blockchain), Fayzullo M. Nazarov, Akmal R. Akhatov, Farkhod F. Meliyev
Algorithms For Data Reliability Based On A Cryptographic Distributed Database (Blockchain), Fayzullo M. Nazarov, Akmal R. Akhatov, Farkhod F. Meliyev
Scientific Journal of Samarkand University
The ever-growing information flow in modern society, the diversity of information technologies, the complexity of tasks solved on a computer, have set many tasks for users of these technologies. Currently, due to the numerous data streams, the need to process this data in a short period is also growing. Due to the large number of data streams for their storage and processing in the shortest possible time it is required to create automated systems. This research paper presents algorithms for solving the problem of increasing data flow by forming a distributed database. Based on this, methods for optimizing the storage …