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Authors = Meglena Lazarova

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16 pages, 2354 KiB  
Proceeding Paper
Design and Implementation of a Passive Optical Network for a Small Town
by Fatima Sapundzhi, Boyko Zarev, Slavi Georgiev, Snezhinka Zaharieva, Metodi Popstoilov and Meglena Lazarova
Eng. Proc. 2025, 100(1), 40; https://doi.org/10.3390/engproc2025100040 - 15 Jul 2025
Viewed by 256
Abstract
The increasing demand for high-speed internet and advanced digital services necessitates the deployment of robust and scalable broadband infrastructure, particularly in smaller urban and rural areas. This paper presents the design and implementation of a passive optical network (PON) based on a gigabit-capable [...] Read more.
The increasing demand for high-speed internet and advanced digital services necessitates the deployment of robust and scalable broadband infrastructure, particularly in smaller urban and rural areas. This paper presents the design and implementation of a passive optical network (PON) based on a gigabit-capable passive optical network (GPON) standard to deliver fiber-to-the-home (FTTH) services in a small-town setting. The proposed solution prioritizes cost-effectiveness, scalability, and minimal energy consumption by leveraging passive splitters and unpowered network elements. We detail the topology planning, splitter architecture, installation practices, and technical specifications that ensure efficient signal distribution and future network expansion. The results demonstrate the successful implementation of an optical access infrastructure that supports high-speed internet, Internet Protocol television (IPTV), and voice services while maintaining flexibility for diverse urban layouts and housing types. Full article
(This article belongs to the Proceedings of The 14th International Scientific Conference TechSys 2025—Engineering, Technologies and Systems)
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20 pages, 2251 KiB  
Article
A Cloud-Based Approach to Modeling ERP Information Flows Using a Bivariate Pólya–Aeppli Process
by Fatima Sapundzhi, Vesna Dimitrova, Meglena Lazarova, Slavi Georgiev, Michail Todorov and Venelin Todorov
Mathematics 2025, 13(11), 1699; https://doi.org/10.3390/math13111699 - 22 May 2025
Viewed by 628
Abstract
Fast-growing technology and the development of IT services give the idea of founding a new application of stochastic processes and their properties. We give a new connection between electronic process management and a stochastic process named the bivariate Pólya–Aeppli counting process. This process [...] Read more.
Fast-growing technology and the development of IT services give the idea of founding a new application of stochastic processes and their properties. We give a new connection between electronic process management and a stochastic process named the bivariate Pólya–Aeppli counting process. This process is applied as a counting process in the mathematical construction of the given model and it has been introduced as a counting process in electronic process management. In our current study, we assume a company that has two locations in two countries—Bulgaria and Romania. For seamless communication and data sharing, the integrated factories leverage the System Applications and Products in Data Processing (SAP) system. By combining these functions into one structure, we optimize coordination, streamline operations, and improve the company’s productivity and profitability. The automated tools within the system facilitate uninterrupted production and secure supply chains and thus the decision making is improved. A key benefit of these tools is to boost production and procurement activities for success in today’s competitive market which results in cost savings, will increase visibility, and also will improve rapid decision making. Full article
(This article belongs to the Special Issue Data-Driven Algorithms for Optimal Decision Making in Logistics and Supply Chain Management)
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9 pages, 598 KiB  
Article
Stochastic Modeling with Applications in Supply Chain Management and ICT Systems
by Meglena Lazarova and Fatima Sapundzhi
Computation 2023, 11(2), 21; https://doi.org/10.3390/computation11020021 - 31 Jan 2023
Cited by 2 | Viewed by 7701
Abstract
Fast-growing technology and the development of IT services have yielded the idea of founding a new application of stochastic processes and their properties. We give a new connection between electronic process management and a relatively new stochastic process named the Non-central Polya-Aeppli process. [...] Read more.
Fast-growing technology and the development of IT services have yielded the idea of founding a new application of stochastic processes and their properties. We give a new connection between electronic process management and a relatively new stochastic process named the Non-central Polya-Aeppli process. This process is applied as a counting process in the mathematical construction of the given model, and it has been introduced as a counting process in electronic process management. Full article
(This article belongs to the Special Issue Applications of Statistics and Machine Learning in Electronics)
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