Publications

• Yordanova, M.; Haka, A.; Aleksieva, V.; Valchanov, H. A Simulation Tool for Security in ZigBee-Based IoT Networks. Eng. Proc. 2024, 70, 21. https://doi.org/10.3390/engproc2024070021
• Aleksieva, Veneta, Hristo Valchanov, Venelin Maleshkov, and Aydan Haka. 2024. "Blockchain Solutions for Logistic Management" Blockchains 2, no. 4: 445-457. ISSN: 2813-5288, https://doi.org/10.3390/blockchains2040019
• Dinev D., Haka A., Aleksieva V., Valchanov H., Ilieva B. An Educational Tool for Z-wave Network Simulations and Finding Optimal Routes. (2024) AIP Conference Proceedings, 3063 (1), art. no. 050001, DOI: 10.1063/5.0195818
• A. Haka, D. Dinev, V. Aleksieva and H. Valchanov, "Integrated Environment for Monitoring Data from Wireless Sensor Technologies for IoT," 2023 International Conference Automatics and Informatics (ICAI), Varna, Bulgaria, 2023, pp. 71-76, ISBN:979-8-3503-1291-1, doi: 10.1109/ICAI58806.2023.10339040
• A. Haka, Y. Yordanov, D. Dinev, V. Aleksieva and H. Valchanov, "Simulation Environment for Examining the Pairing Methods in BLE Technology," 2023 18th Conference on Electrical Machines, Drives and Power Systems (ELMA), Varna, Bulgaria, 2023, pp. 1-4, doi: 10.1109/ELMA58392.2023.10202261
• D. Dinev, A. Haka, V. Aleksieva and H. Valchanov, "Analysis of LoRa RSSI Data Using Simulations and Real Devices," 2023 18th Conference on Electrical Machines, Drives and Power Systems (ELMA), Varna, Bulgaria, 2023, pp. 1-4, doi: 10.1109/ELMA58392.2023.10202359
• Veneta Aleksieva, Hristo Valchanov, Aydan Haka and Diyan Dinev, "Model of controlled environment based on Blockchain and IoT," 2023 4th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), 23 – 25 November, 2023, Plovdiv, Bulgaria, pp: 1-4, Electronic ISBN:979-8-3503-3691-7, DOI: 10.1109/CIEES58940.2023.10378795
• Aleksieva, Veneta, Hristo Valchanov, Aydan Haka, and Diyan Dinev. 2023. "Logistics Model Based on Smart Contracts on Blockchain and IoT" Engineering Proceedings 41, no. 1: 8. https://doi.org/10.3390/engproc2023041008
• M. Yordanova and A. Haka, "Comparative Evaluation of Communication Protocols in the Automotive Industry," 2023 18th Conference on Electrical Machines, Drives and Power Systems (ELMA), Varna, Bulgaria, 2023, pp. 1-4, doi: 10.1109/ELMA58392.2023.10202531
• Marieta Yordanova, Aydan Haka, "VANET framework for incident response and management," 2023 4th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), 23 – 25 November, 2023, Plovdiv, Bulgaria, pp: 1-4, Electronic ISBN:979-8-3503-3691-7, DOI: 10.1109/CIEES58940.2023.10378826
• Айдън М. Хъкъ, Мариета М. Йорданова, МЕТОДИ ЗА ЗАЩИТА НА ИНТЕЛИГЕНТНИ ТРАНСПОРТНИ СРЕДСТВА С ИЗПОЛЗВАНЕ НА ИЗКУСТВЕН ИНТЕЛЕКТ. //Компютърни науки и технологии, Година XXI, Брой 1, 2023, ISSN 1312-3335
• Dinev, D. and Haka, A. RSSI study of wireless Internet of Things technologies. //Journal of Physics: Conference Series, Volume 2339, International Conference on Electronics, Engineering Physics and Earth Science 2022 (EEPES 2022) 21/06/2022 - 24/06/2022 Varna, Bulgaria, Online ISSN: 1742-6596, Print ISSN: 1742-6588, doi: 10.1088/1742-6596/2339/1/012014, https://iopscience.iop.org/article/10.1088/1742-6596/2339/1/012014
• Haka, A., Yordanov, Y., Aleksieva, V., Valchanov, H. Study of Received Signal Strength Indicator values of Bluetooth Low Energy in Test Environment and Simulation. //International Conference AUTOMATICS AND INFORMATICS`2022, October 06 - 08, 2022, Varna, Bulgaria (ICAI'22), pp. 282-286, Electronic ISBN:978-1-6654-7625-6, Print on Demand(PoD) ISBN:978-1-6654-7626-3, doi: 10.1109/ICAI55857.2022.9960009
• Haka, A., Dinev, D., Aleksieva, V., Valchanov, H. Internet of Things Sensor Data Storing Systems for Educational Purposes. //2022 International Conference on Communications, Information, Electronic and Energy Systems (CIEES 2022) 24 – 26 November, 2022, Veliko Tarnovo, Bulgaria, pp. 1-6, ISBN: 978-1-6654-9148-8, doi: 10.1109/CIEES55704.2022.9990805
• Haka, A., Dinev, D., Aleksieva, V., Valchanov, H. A study of ZigBee Networks in Experimental Environment and Simulation. //2022 International Conference on Communications, Information, Electronic and Energy Systems (CIEES 2022) 24 – 26 November, 2022, Veliko Tarnovo, Bulgaria, pp. 1-6, ISBN 978-1-6654-9148-8, DOI: 10.1109/CIEES55704.2022.9990742
• Haka, A., Dinev, D., Aleksieva, V., Valchanov, H. Comparative analysis of ZigBee, 6LoWPAN and BLE technologies for the Internet of Things. //INTERNATIONAL SCIENTIFIC CONFERENCE OF COMMUNICATIONS, INFORMATION, ELECTRONIC AND ENERGY SYSTEMS (CIEES), 25-27 November, 2021, Ruse, Bulgaria, AIP Conference Proceedings, ISBN: 978-0-7354-4375-4, Volume number: 2570, Published: Aug 18, 2022, https://doi.org/10.1063/5.0099684
• Динев, Д., Хъкъ, А. LORA И ZIGBEE СЕНЗОРНА МРЕЖОВА СИСТЕМА ЗА СЪХРАНЕНИЕ НА ДАННИ. //Сборник доклади международна научна конференция УНИТЕХ 2022, Габрово, 18-19 ноември 2022, pp: I-312 - I-317 , ISSN: 1313-230X
• Динев, Д., Илиева, Б., Хъкъ, A., Z-WAVE - РЕШЕНИЕ ЗА ПРЕДИЗВИКАТЕЛСТВАТА НА ДОМАШНАТА АВТОМАТИЗАЦИЯ. //Компютърни науки и технологии, 2022, pp: 43-48, година ХХ, брой 2, ISSN: 1312-3335
• Хъкъ, A., Съвременни изчислителни модели за технологии за Интернет на обектите. //Компютърни науки и технологии, 2022, pp: 14-24, година ХХ, брой 2, ISSN: 1312-3335
• Yordanov, Y. and Haka A. Bluetooth Low Energy Technology Simulators. //The Journal of CIEES - Communications, Informacion, Electronic & Energy Systems, Year 2022, Volume 2, Issue 1, July 2022, pp: 7-11, Print ISSN: 2738-7283, Online ISSN: 2738-7291, DOI: 10.48149/jciees.2022.2.1
• Haka, A., Aleksieva, V., Valchanov, H. Simulation Environment for Research of Algorithms for Traffic Prioritisation in ZigBee Network. //Proceedings, 2021 17-th Conference on Electrical Machines, Drives and Power Systems (ELMA), 1-4 July 2021, Sofia, Bulgaria, pp: 609-612, ISBN: 978-1-6654-3581-9, DOI: 10.1109/ELMA52514.2021.9503088
• Haka, A., Yordanov, Y., Aleksieva, V., Valchanov, H. Simulation Environment for Bluetooth Low Energy Network. //2021 International Conference Automatics and Informatics (ICAI), 30 September-02 October 2021, Varna, Bulgaria, pp. 287-290, Electronic ISBN:978-1-6654-2661-9, Print on Demand(PoD) ISBN:978-1-6654-2662-6, DOI: 10.1109/ICAI52893.2021.9639521.
• Haka, A., Aleksieva, V., Valchanov, H. ZigBee Simulation Framework for Studying the Formation of a Hierarchical Tree Topology. //2021 International Conference Automatics and Informatics (ICAI), 30 September-02 October 2021, Varna, Bulgaria, pp. 257-260, Electronic ISBN:978-1-6654-2661-9, Print on Demand(PoD) ISBN:978-1-6654-2662-6, DOI: 10.1109/ICAI52893.2021.9639563.
• Haka, A., Aleksieva, V., Valchanov, H. A Comparison Study of Decisions for Computer Network Laboratory in Distant Learning Education. //Proceedings, 2021 17-th Conference on Electrical Machines, Drives and Power Systems (ELMA), 1-4 July 2021, Sofia, Bulgaria, pp: 468-471, ISBN: 978-1-6654-3581-9, DOI: 10.1109/ELMA52514.2021.9503088
• Хъкъ, А., Йорданов, Й. СИМУЛАЦИОННА СРЕДА ЗА ИЗУЧАВАНЕ НА BLUETOOTH LOW ENERGY ТЕХНОЛОГИЯ. //Сборник доклади международна научна конференция УНИТЕХ 2021, Габрово, 19-20 ноември 2021, pp:213-218, ISSN: 2603-378X
• Хъкъ, A. СРАВНЕНИЕ НА СИМУЛАТОРИ ЗА 4G ТЕХНОЛОГИИТЕ - WIMAX И LTE. //Компютърни науки и технологии, година XIX, брой 1, 2021, pp:15-22, ISSN 1312-3335
• Хъкъ, A., Йорданов, Й. СИМУЛАЦИОННА СРЕДА ЗА ВИЗУАЛИЗИРАНЕ НА BLUETOOTH LOW ENERGY ПАКЕТИ. //Компютърни науки и технологии, година XIX, брой 1, 2021, pp:6-14, ISSN 1312-3335
• Haka, A., Aleksieva, V., Valchanov, H. Deployment and Analysis of Bluetooth Low Energy Network. //IOP Conference Series: Materials Science and Engineering, Volume 1032, INTERNATIONAL SCIENTIFIC CONFERENCE OF COMMUNICATIONS, INFORMATION, ELECTRONIC AND ENERGY SYSTEMS (CIEES), 26-29 November 2020, Online ISSN: 1757-899X, Print ISSN: 1757-8981, https://doi.org/10.1088/1757-899X/1032/1/012016
• Haka, A., Aleksieva, V., Valchanov, H. 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, Electronic ISBN: 978-1-7281-4346-0
• Haka, A., Aleksieva, V., Valchanov, H., Dinev, D. Analysis of ZigBee Network Using Simulations and Experiments //International Conference “Automatics and Informatics’2020” (ICAI'20), 01-03 October 2020, Varna, Bulgaria, pp. 1-4, Electronic ISBN:978-1-7281-9308-3, Print on Demand(PoD) ISBN:978-1-7281-9309-0, DOI: 10.1109/ICAI50593.2020.9311328.
• Haka, A., Aleksieva, V., Valchanov, H. 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), 24-27 September, 2020, Varna, Bulgaria, Electronic ISBN:978-1-7281-7073-2, pp. 109-112, Print on Demand(PoD) ISBN:978-1-7281-7074-9, DOI: 10.1109/BIA50171.2020.9244507
• Haka, A., Aleksieva, V., Valchanov, H. 6LoWPAN Network Analysis Using Simulations and Experiments. //IOP Conference Series: Materials Science and Engineering, Volume 1032, INTERNATIONAL SCIENTIFIC CONFERENCE OF COMMUNICATIONS, INFORMATION, ELECTRONIC AND ENERGY SYSTEMS (CIEES), 26-29 November 2020, Online ISSN: 1757-899X, Print ISSN: 1757-8981, https://doi.org/10.1088/1757-899X/1032/1/012015
• Haka, A., Aleksieva, V., Valchanov, H. 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, Electronic ISBN: 978-1-7281-4346-0
• Haka, A., Aleksieva, V., Valchanov, H. 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, doi: 10.1109/SIELA49118.2020.9167040, Electronic ISBN: 978-1-7281-4346-0
• Haka, A. Improved simulation environment for visualisation the content of IEEE 802.15.4 frame on 6LoWPAN network. //Monthly scientific and technical journal ELECTROTECHNICA & ELECTRONICA E+E, Bulgaria, 2020, Vol. 55, No 5-8/2020, pp: 86-93, ISSN: 0861-4717
• Айдън Хъкъ, КОМПЛЕКСНА ОЦЕНКА НА СИМУЛАТОРИ ЗА ZIGBEE БЕЗЖИЧНИ СЕНЗОРНИ МРЕЖИ ЗА ЦЕЛИТЕ НА ОБУЧЕНИЕТО. //СБОРНИК ДОКЛАДИ МЕЖДУНАРОДНА НАУЧНА КОНФЕРЕНЦИЯ, УНИТЕХ’20, 20 – 21 НОЕМВРИ 2020, ГАБРОВО, pp: 313-318, ISSN: 2603-378X
• Айдън Хъкъ, ИЗСЛЕДВАНЕ НА UPLOAD И DOWNLOAD ТРАФИКА ПРИ БЕЗЖИЧНА 6LOWPAN СЕНЗОРНА МРЕЖА ЗА INTERNET OF THINGS (IOT). //СБОРНИК ДОКЛАДИ МЕЖДУНАРОДНА НАУЧНА КОНФЕРЕНЦИЯ, УНИТЕХ’20, 20 – 21 НОЕМВРИ 2020, ГАБРОВО, pp: 308-312, ISSN: 2603-378X
• Айдън М. Хъкъ, ИЗСЛЕДВАНЕ НА БЕЗЖИЧНИ ТЕХНОЛОГИИ ЗА INTERNET OF THINGS (IOT) МРЕЖИ. //Компютърни науки и технологии, Година XVIII, Брой 1, 2020, pp:51-58, ISSN 1312-3335