Академичен състав

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проф. д-р инж. Христо Георгиев Вълчанов


hristo@tu-varna.bg
052 383 439
207-4E

Образование и обучение

2023г. Професор, научно направление 5.3 "Комуникационна и компютърна техника", учебна дисциплина "Администриране на локални и Интернет мрежи"

2014г. Доцент, научно направление 5.3 "Комуникационна и компютърна техника", научна специалност "Системно програмиране"
2010г. Специализация Hewlett Packard - San Francisco, USA
2008г. Доктор, дисертационен труд на тема "Интегриран подход за обектно-ориентирана разпределена симулация" (02.21.04)
2005г. Специализация Microsoft Research- Budapest, Hungary
2003г. Сертификат CCAI на Cisco Systems
2003г. Сертификат CCNA на Cisco Systems
1989г. ВМЕИ-Варна, спец.”Изчислителна техника”

Област на преподавателска дейност

Операционни системи
Разпределено програмиране
Извличане на информация в Интернет
Мрежови инфраструктури
Администриране на локални и Интернет мрежи
Компютърна и мрежова сигурност

Област на научна дейност

Разпределена симулация
Разпределени изчисления
Паралелни изчислителни системи
Виртуализационни технологии
Интернет сървъри и услуги

Публикации

  1. V. Aleksieva, H. Valchanov, M. Vangelova, Cloud based system for reservation of medical appointments, 2022, AIP Conference Proceedings 2570, 020002, ISBN 978-073544375-4, DOI 10.1063/5.0099627
  2. D. Todorov, H. Valchanov, V. Aleksieva, Comparative evaluation of traffic load balancing and QoS in SDN networks, 2022, AIP Conference Proceedings 2570, 020002, ISBN 978-073544375-4, DOI 10.1063/5.0099807
  3. H.Valchanov, V.Aleksieva. Smart Contracts based on Hyperledger Fabric Blockchain for the Purpose of Higher Education Subsidizing, 2022 International Scientific Conference on Communications, Information, Electronic and Energy Systems, CIEES’22 (приета)
  4. H.Valchanov, V.Aleksieva. Blockchain and IoT integration for smart transportation, International Conference on Electronics, Engineering Physics and Earth Science (EEPES 2022), Journal of Physics: Conference Series, Volume 2339, pp.1-8, Online ISSN: 1742-6596, Print ISSN: 1742-6588, DOI: https://doi.org/10.1088/1742-6596/2339/1/012012
  5. V. Aleksieva, H. Valchanov, Smart contracts based on hyperledger fabric blockchain for the purpose of health and life insurance services, 2022, AIP Conference Proceedings 2570, 020002, ISBN 978-073544375-4, DOI 10.1063/5.0099626
  6. Haka, A., Dinev, D., Aleksieva, V., Valchanov, H. Comparative analysis of ZigBee, 6LoWPAN and BLE technologies for the Internet of Things, 2022, AIP Conference Proceedings 2570, 020002, ISBN 978-073544375-4, DOI 10.1063/5.0099684
  7. D. Todorov, H. Valchanov, V. Aleksieva, Shortest path routing algorithm with dynamic composite weights in SDN networks, ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 193-197, doi: 10.1109/ICAI52893.2021.9639512 ISBN:978-1-6654-2661-9
  8. D. Todorov, H. Valchanov, V. Aleksieva, Simple routing algorithm with link discovery between source and destination hosts in SDN networks, ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 188-191, doi: 10.1109/ICAI52893.2021.9639742, ISBN:978-1-6654-2661-9
  9. A. Haka, V. Aleksieva and H. Valchanov, "Simulation Environment for Research of Algorithms for Traffic Prioritisation in ZigBee Network," 2021 17th Conference on Electrical Machines, Drives and Power Systems (ELMA), 2021, pp. 1-4, doi: 10.1109/ELMA52514.2021.9503088.
  10. A. Haka , D. Dinev , V. Aleksieva , H. Valchanov, Comparative analysis of ZigBee, 6LoWPAN and BLE technologies for the Internet of Things, AIP, CIEES’21,25-27.11.2021, Rouse, Bulgaria (приета)
  11. A.Haka, Y.Yordanov, V.Aleksieva, H.Valchanov, Simulation Environment for Bluetooth Low Energy Network , ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 287-290, doi: 10.1109/ICAI52893.2021.9639521 ISBN:978-1-6654-2661-9
  12. D.Dinev, V.Aleksieva, H.Valchanov, K.Genov, Simulation Software For Finding Best Route in LoRaWan Network, ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 291-294, doi: 10.1109/ICAI52893.2021.9639718 ISBN:978-1-6654-2661-9
  13. D.Dinev, V.Aleksieva, H.Valchanov, Comparative Analisis of Li Fi Simulators for Purposes of the Education, ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 125-128, doi: 10.1109/ICAI52893.2021.9639691 ISBN:978-1-6654-2661-9
  14. A.Haka, V.Aleksieva, H.Valchanov, ZigBee Simulation Framework for Studying the Formation of a Hierarchical Tree Topology , ICAI’21,30.09.-02.10.2021, Bulgaria, pp. 257-260, doi: 10.1109/ICAI52893.2021.9639563 ISBN:978-1-6654-2661-9
  15. Y. Dimitrov, V. Aleksieva and H. Valchanov, "Method for Body Pose Recognition based on Two-Finger Touch Bezel on Wearable Device," 2021 17th Conference on Electrical Machines, Drives and Power Systems (ELMA), 2021, pp. 1-5, doi: 10.1109/ELMA52514.2021.9503001.
  16. A. Haka, V. Aleksieva and H. Valchanov, "A Comparison Study of Decisions for Computer Network Laboratory in Distant Learning Education", 2021 17th Conference on Electrical Machines, Drives and Power Systems (ELMA), 2021, pp. 1-4, doi: 10.1109/ELMA52514.2021.9503059.
  17. V. Aleksieva, H. Valchanov and A. Huliyan, "Implementation of Smart-Contract, Based on Hyperledger Fabric Blockchain," 2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, 2020, pp. 1-4, doi: 10.1109/SIELA49118.2020.9167043. ISBN:978-1-7281-4346-0
  18. V. Aleksieva, H. Valchanov and A. Huliyan. Implementation of Smart-Contract, Based on Hyperledger Fabric Blockchain for the Purpose of Insurance Services, Proc. of BIA, 2020, pp.113-116, DOI: 10.1109/BIA50171.2020.9244500. ISBN:978-1-7281-7073-2
  19. V. Aleksieva, H. Valchanov and A. Huliyan. Smart Contracts based on Private and Public Blockchains for the Purpose of Insurance Services, ICAI 2020, IEEE, ISBN:978-1-7281-9309-0, Electronic ISBN:978-1-7281-9308-3, DOI: 10.1109/ICAI50593.2020.9311371
  20. D.Todorov, H. Valchanov and V. Aleksieva. Load Balancing model based on Machine Learning and Segment Routing in SDN, ICAI 2020, IEEE, ISBN:978-1-7281-9309-0, Electronic ISBN:978-1-7281-9308-3, DOI: 10.1109/ICAI50593.2020.9311385
  21. A. Haka, V. Aleksieva and H. Valchanov, "Comparative Analysis of Traffic Prioritisation Algorithms by LTE Base Station Scheduler," 2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, 2020, pp. 1-4, ISBN 978-172814346-0, doi: 10.1109/SIELA49118.2020.9167040
  22. A. Haka, V. Aleksieva and H. Valchanov, "Comparative Analysis of Traffic Prioritisation Algorithms in 6LOWPAN Networks," 2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, 2020, pp. 1-4, doi: 10.1109/SIELA49118.2020.9167116.
  23. A. Haka, V. Aleksieva and H. Valchanov, "Software Tool for Evaluation of Traffic Prioritisation Algorithms in 6LOWPAN Network," 2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, 2020, pp. 1-4, doi: 10.1109/SIELA49118.2020.9167147.
  24. D. Dinev, V. Aleksieva and H. Valchanov, "Study of Li-Fi Indoor Network Reliability," 2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, 2020, pp. 1-4, doi: 10.1109/SIELA49118.2020.9167053.
  25. A. Haka, V. Aleksieva and H. Valchanov, "Enhanced Simulation Framework for Visualisation of IEEE 802.15.4 Frame Structure on Beacon Enabled Mode of ZigBee Sensor Network," 2020 International Conference on Biomedical Innovations and Applications (BIA), Varna, Bulgaria, 2020, pp. 109-112, doi: 10.1109/BIA50171.2020.9244507.
  26. A. Haka, V. Aleksieva, H. Valchanov and D. Dinev, "Analysis of ZigBee Network Using Simulations and Experiments," 2020 International Conference Automatics and Informatics (ICAI), Varna, Bulgaria, 2020, pp. 1-4, doi: 10.1109/ICAI50593.2020.9311328.
  27. D. Dinev, V. Aleksieva and H. Valchanov, "Simulation Framework For Studying Quality of Service Traffic Prioritization Algorithms in Li-Fi Network," 2020 International Conference Automatics and Informatics (ICAI), Varna, Bulgaria, 2020, pp. 1-4, doi: 10.1109/ICAI50593.2020.9311358.
  28. A. Haka, V. Aleksieva, H. Valchanov, 6LoWPAN Network Analysis Using Simulations and Experiments, IOP Conference Series: Materials Science and Engineering, CIEES’20, vol. 1032 (2020), pp.1-4, doi:10.1088/1757-899X/1032/1/012015, ISSN: 1757-8981 , https://iopscience.iop.org/article/10.1088/1757-899X/1032/1/012015
  29. A. Haka, V. Aleksieva, H. Valchanov, Deployment and Analysis of Bluetooth Low Energy Network, IOP Conference Series: Materials Science and Engineering, CIEES’20, vol. 1032 (2020), pp.1-4, doi:10.1088/1757-899X/1032/1/012016, ISSN: 1757-8981, https://iopscience.iop.org/article/10.1088/1757-899X/1032/1/012016
  30. Y. Dimitrov, V. Aleksieva, H. Valchanov, Comparative Analysis of Prototypes for Two Touch Finger Interfaces of Smartwatch, IOP Conference Series: Materials Science and Engineering, CIEES’20, vol. 1032 (2020), pp.1-4, doi:10.1088/1757-899X/1032/1/012019, ISSN: 1757-8981, https://iopscience.iop.org/article/10.1088/1757-899X/1032/1/012019
  31. Veneta Aleksieva, Hristo Valchanov and Anton Huliyan. Application of Smart Contracts based on Ethereum Blockchain for the Purpose of Insurance Services. BIA 2019. pp.69-72 , IEEE, Electronic ISBN: 978-172814754-3, ISBN:978-1-7281-4755-0, DOI: 10.1109/BIA48344.2019.8967468
  32. V. Aleksieva, H. Valchanov and D. Dinev, "Comparison Study of Prototypes based on LiFi Technology," 2019 International Conference on Biomedical Innovations and Applications (BIA), 2019, pp. 1-4, doi: 10.1109/BIA48344.2019.8967478
  33. Hristo Valchanov, Veneta Aleksieva, Jan Edikyan. Study of Wireless Network Security. Proc. of UNITECH’19, Gabrovo, pp. II-7-II-11, ISSN 1313-230X UNiTECH 2019.
  34. Veneta Aleksieva, Hristo Valchanov, Yuri Dimitrov. Study of Smart Watch Interfaces. Proc. of UNITECH’19, Gabrovo, pp. II-12-II-16, ISSN 1313-230X UNiTECH 2019.
  35. В. Алексиева, Х.Вълчанов, А. Хулиян , Приложение на интелигентни договори базирани на блокчейн за целите на застрахователните услуги , // Информатика и иновативни технологии,сс.7-14 бр.1(1),2019, ISSN 2682-9517
  36. V Aleksieva, A Huliyan, H Valchanov, An approach of Crypto-token for Smart Contract based on Ethereum Blockchain , Journal of the Technical University – Sofia, Plovdiv branch, Bulgaria, “Fundamental Sciences and Applications”, Vol 25 No 1 (2019), pp.1-7, ISSN 2603-459X, https://journals.tu-plovdiv.bg/index.php/journal
  37. H.Valchanov. Power Management of a Virtual Infrastructure. Компютърни науки и технологии, v.1, 2018 77-82, ISSN 1312-3335
  38. Todorov D., H.Valchanov. Routing and Traffic Load Balancing in SDN-NFV Networks. Proc of International Conference Applied Computer Technologies, 2018, pp.127-130. ISBN 978-608-66225-0-3
  39. Trifonov D., H. Valchanov. Virtualization and Containerization Systems for BigData. In Proc. of TechSys’18, 2018, Plovdiv, pp.II157 – II160, ISSN Online: 2535-0048.
  40. Y.Aleksieva, H.Valchanov. BOTNET DETECTION SYSTEM BASED ON GENETIC ALGORITHMS. In Proc. of Conf. Automatics and Informatics’18, Sofia, 2018, pp.129-139. ISSN 1313-1850.
  41. Aleksieva Y., H.Valchanov. Anomaly Based Botnet Setection System. Proc. of UNITECH’18, Gabrovo, 2018, vol.2, pp. II123-II127, ISSN 1313-230X
  42. Trifonov D., H.Valchanov. VIRTUALIZATION AND CONTAINERIZATION SYSTEMS FOR BIG DATA. //Journal of the technical University of Sofia Plovdiv Branch, Bulgaria, Fundamental science and Applications,7, 2018, vol.24, pp. 129-132. ISSN 1310 – 8271.
  43. Raychinov K., H. Valchanov. Intrusion Detection and Preventing System. //Journal of the technical University of Sofia Plovdiv Branch, Bulgaria, Fundamental science and Applications,7, 2017, vol.23, pp. 97-100. ISSN 1310 - 8271
  44. Y.Aleksieva, H.Valchanov. Network Simulator for Botnet DoS Attacks. Information Technologies and Control, N:1, 2017, 33-40, ISSN 1312-2622
  45. Valchanov H., D.Trifonov. Performance analysis of Virtualization and Containerization Platforms for Big Data Processing. . Proc. of UNITECH’17, Gabrovo, 2017, pp. 203-208, ISSN 1313-230X
  46. Valchanov H., D.Trifonov. Performance analysis of Virtualization and Containerization Platforms for Big Data Processing. . Proc. of UNITECH’17, Gabrovo, 2017, Selected papers, pp. II283-II288, ISSN 2603-378X.


Допълнителна информация

Инструктор Cisco академия към ТУ-Варна
Член на ACM (Association for Computing Machinery)
Член на IEEE (Institute of Electrical and Electronics Engineers)
Член на Управителния съвет на САИ (Съюз по Автоматика и Информатика)


Езици

Руски, английски


Автобиография