bsuirДоклады БГУИРDoklady BGUIR1729-76482708-0382БГУИР10.35596/1729-7648-2026-24-4-54-62bsuir-4404Research ArticleСтатьиОлареважу Питер Айеорибе. Оптимизация защитных интервалов в сетях DVB-T2 на основе OFDM для снижения частоты битовой ошибки и улучшения городского покрытияOptimization of Guard Intervals in OFDM-Based DVB-T2 Networks to Reduce Bit Error Rate and Improve Urban CoverageОлареважуПитер АйеорибеOlarewajuPeter Ayeoribe

Olarewaju Peter Ayeoribe, PhD, Researcher at the Department of Electrical and Electronic Engineering

ayeoribe.olarewaju@gmail.comФедеральный университет Ойе-ЭкитиНигерияFederal University Oye-EkitiNigeria2026300820262445462Copyright © Олареважу П., 20262026Олареважу П.Olarewaju P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.bsuir.by/jour/article/view/4404

Системы DVB-T2, установленные в городских районах, существенно зависят от многолуче- вого распространения и межсимвольных помех. В статье рассмотрена возможность оптимизации настроек защитного интервала для систем DVB-T2 с поддержкой ортогонального частотного мультиплексирования для минимизации частоты битовых ошибок и повышения эффективности передачи сигнала в городских условиях. С помощью моделирования в MATLAB проанализированы четыре различных защитных интер- вала (1/4, 1/8, 1/16, 1/32) с учетом изменений в канале. Результаты показали, что оптимальная настройка защитного интервала составила 1/8, при которой значение частоты битовых ошибок уменьшилось с 10−3 до 10−5 при SNR = 18 дБ, а эффективность покрытия сигнала увеличилась на 22 %.

DVB-T2 systems deployed in urban areas are significantly susceptible to multipath propagation and intersymbol interference. This article examines the possibility of optimizing guard interval settings for DVB-T2 systems supporting orthogonal frequency division multiplexing to minimize the bit error rate and improve signal transmission efficiency in urban environments. Using MATLAB simulations, four different guard intervals (1/4, 1/8, 1/16, and 1/32) were analyzed, taking into account channel variations. The results showed that the optimal guard interval setting was 1/8, which reduced the bit error rate from 10−3 to 10−5 at an SNR of 18 dB, and increased signal coverage efficiency by 22 %.

DVB-T2ортогональное частотное мультиплексированиезащитный интервалбитовая ошибкагородское покрытиеDVB-T2orthogonal frequency division multiplexingguard intervalbit errorurban coverageАвтор выражает признательность за помощь, оказанную коллегами Peters A. O. Broadcasting Company Ltd. (Адо-Экити, Нигерия) и кафедры электротехники и электроники Федерального университета Ойе-Экити (Нигерия), в процессе работы над материалом статьи.The author acknowledges the assistance provided by colleagues from Peters A. O. Broadcasting Company Ltd. (Ado-Ekiti, Nigeria) and the Department of Electrical and Electronic Engineering, Federal University Oye-Ekiti (Nigeria) during the development of this article.ReferencesInternational Telecommunication Union Radiocommunication Sector (ITU-R), Frequency and Network Planning Aspects of DVB-T2. Report ITU-R BT.2254-5. Geneva, Switzerland, Nov. 2021. Available: https://www.itu.int/pub/R-REP-BT.2254 (Accessed 2 June 2026).International Telecommunication Union Radiocommunication Sector (ITU-R), Frequency and Network Planning Aspects of DVB-T2. Report ITU-R BT.2254-5. Geneva, Switzerland, Nov. 2021. Available: https://www.itu.int/pub/R-REP-BT.2254 (Accessed 2 June 2026).Ouyang R., Matsumura T., Mizutani K., Harada H. (2021b). Channel Measurement and Modeling Prototype for IEEE 802.22-Based Regional Area Networks. IEEE Access. 9, 144587–144599. https://doi.org/10.1109/access.2021.3117252.Ouyang R., Matsumura T., Mizutani K., Harada H. (2021b). Channel Measurement and Modeling Prototype for IEEE 802.22-Based Regional Area Networks. IEEE Access. 9, 144587–144599. https://doi.org/10.1109/access.2021.3117252.Rowshan M., Qiu M., Xie Y., Gu X., Yuan J. (2024) Channel Coding Toward 6G: Technical Overview and Outlook. IEEE Open Journal of the Communications Society. 5, 2585–2685. https://doi.org/10.1109/ojcoms.2024.3390000.Rowshan M., Qiu M., Xie Y., Gu X., Yuan J. (2024) Channel Coding Toward 6G: Technical Overview and Outlook. IEEE Open Journal of the Communications Society. 5, 2585–2685. https://doi.org/10.1109/ojcoms.2024.3390000.Wasilewska M., Kliks A., Bogucka H., Cichon K., Ruseckas J., Molis G., et al. (2021) Artificial Intelligence for Radio Communication Context-Awareness. IEEE Access. 9, 144820–144856. https://doi.org/10.1109/access.2021.3119524.Wasilewska M., Kliks A., Bogucka H., Cichon K., Ruseckas J., Molis G., et al. (2021) Artificial Intelligence for Radio Communication Context-Awareness. IEEE Access. 9, 144820–144856. https://doi.org/10.1109/access.2021.3119524.Honfoga A.-C., Dossou M., Dassi P., Moeyaert V. (2021) Filtered Based UFMC Waveform Applied on Joint DVB-T2/NUC System. AFRICOMM. https://doi.org/10.1007/978-3-030-70572-5_2.Honfoga A.-C., Dossou M., Dassi P., Moeyaert V. (2021) Filtered Based UFMC Waveform Applied on Joint DVB-T2/NUC System. AFRICOMM. https://doi.org/10.1007/978-3-030-70572-5_2.Aragon-Zavala A., Angueira P., Montalban J., Vargas-Rosales C. (2021) Radio Propagation in Terrestrial Broadcasting Television Systems: A Comprehensive survey. IEEE Access. 9, 34789–34817. https://doi.org/10.1109/access.2021.3061034.Aragon-Zavala A., Angueira P., Montalban J., Vargas-Rosales C. (2021) Radio Propagation in Terrestrial Broadcasting Television Systems: A Comprehensive survey. IEEE Access. 9, 34789–34817. https://doi.org/10.1109/access.2021.3061034.Thenua R. K., Sourour E., Starks D., Kamran R., Simon M., Appaiah K. (2026) Bootstrap-Based Receiver Synchronization and System Discovery in B2X: An Extension of ATSC 3.0. ArXiv.org. https://arxiv.org/abs/2605.09298.Thenua R. K., Sourour E., Starks D., Kamran R., Simon M., Appaiah K. (2026) Bootstrap-Based Receiver Synchronization and System Discovery in B2X: An Extension of ATSC 3.0. ArXiv.org. https://arxiv.org/abs/2605.09298.Zakaria M. N., Hadiwiyatno H., Anugerah M. D. (2025) Analysis of Digital Television Signal System Based on Gain and Information in Malang City Area. Jurnal Jartel Jurnal Jaringan Telekomunikasi. 15 (1), 81–88. https://doi.org/10.33795/jartel.v15i1.6962.Zakaria M. N., Hadiwiyatno H., Anugerah M. D. (2025) Analysis of Digital Television Signal System Based on Gain and Information in Malang City Area. Jurnal Jartel Jurnal Jaringan Telekomunikasi. 15 (1), 81–88. https://doi.org/10.33795/jartel.v15i1.6962.Erunkulu O. O., Zungeru A. M., Lebekwe C. K., Mosalaosi M., Chuma J. M. (2021) 5G Mobile Communication Applications: A Survey and Comparison of Use Cases. IEEE Access. 9, 97251–97295. https://doi.org/10.1109/access.2021.3093213.Erunkulu O. O., Zungeru A. M., Lebekwe C. K., Mosalaosi M., Chuma J. M. (2021) 5G Mobile Communication Applications: A Survey and Comparison of Use Cases. IEEE Access. 9, 97251–97295. https://doi.org/10.1109/access.2021.3093213.Pamungkas W., Fitrian A., Larasati S., Jayati A. E., Ardina E. N., Hendry J. (2024) Multimedia Transmission Technique for Smart Ambulance with Multi-Carrier OFDM in a V2V and V2I Channel Model Using Software Defined Radio Technology. Journal of Applied Engineering and Technological Science. 6 (1), 316–340. https://doi.org/10.37385/jaets.v6i1.5030.Pamungkas W., Fitrian A., Larasati S., Jayati A. E., Ardina E. N., Hendry J. (2024) Multimedia Transmission Technique for Smart Ambulance with Multi-Carrier OFDM in a V2V and V2I Channel Model Using Software Defined Radio Technology. Journal of Applied Engineering and Technological Science. 6 (1), 316–340. https://doi.org/10.37385/jaets.v6i1.5030.Azari M. M., Solanki S., Chatzinotas S., Kodheli O., Sallouha H., Colpaert A., et al. (2022) Evolution of Non-Terrestrial Networks from 5G to 6G: A Survey. IEEE Communications Surveys & Tutorials. 24 (4), 2633–2672. https://doi.org/10.1109/comst.2022.3199901.Azari M. M., Solanki S., Chatzinotas S., Kodheli O., Sallouha H., Colpaert A., et al. (2022) Evolution of Non-Terrestrial Networks from 5G to 6G: A Survey. IEEE Communications Surveys & Tutorials. 24 (4), 2633–2672. https://doi.org/10.1109/comst.2022.3199901.Wang J., Hao Y., Yang C. (2023) The Current Progress and Future Prospects of Path Loss Model for Terrestrial Radio Propagation. Electronics. 12 (24). https://doi.org/10.3390/electronics12244959.Wang J., Hao Y., Yang C. (2023) The Current Progress and Future Prospects of Path Loss Model for Terrestrial Radio Propagation. Electronics. 12 (24). https://doi.org/10.3390/electronics12244959.Celik A., Romdhane I., Kaddoum G., Eltawil A. M. (2022) A Top-Down Survey on Optical Wireless Communications for the Internet of Things. IEEE Communications Surveys & Tutorials. 25 (1), 1–45. https://doi.org/10.1109/comst.2022.3220504.Celik A., Romdhane I., Kaddoum G., Eltawil A. M. (2022) A Top-Down Survey on Optical Wireless Communications for the Internet of Things. IEEE Communications Surveys & Tutorials. 25 (1), 1–45. https://doi.org/10.1109/comst.2022.3220504.Singya P. K., Shaik P., Kumar N., Bhatia V., Alouini M. (2021) A Survey on Higher-Order QAM Constellations: Technical Challenges, Recent Advances, and Future Trends. IEEE Open Journal of the Communications Society. 2, 617–655. https://doi.org/10.1109/ojcoms.2021.3067384.Singya P. K., Shaik P., Kumar N., Bhatia V., Alouini M. (2021) A Survey on Higher-Order QAM Constellations: Technical Challenges, Recent Advances, and Future Trends. IEEE Open Journal of the Communications Society. 2, 617–655. https://doi.org/10.1109/ojcoms.2021.3067384.Ahmed-Ade F., Akpan V. A., Ogolo E. O. (2026) Real-Time Implementation of Integrated Optical Plus Filtered OFDM 5G Network Parameters for LTE and DVB-T2 Telecommunication Systems. Scientific Journal of Engineering Research. 2 (1), 97–130. https://doi.org/10.64539/sjer.v2i1.2026.372.Ahmed-Ade F., Akpan V. A., Ogolo E. O. (2026) Real-Time Implementation of Integrated Optical Plus Filtered OFDM 5G Network Parameters for LTE and DVB-T2 Telecommunication Systems. Scientific Journal of Engineering Research. 2 (1), 97–130. https://doi.org/10.64539/sjer.v2i1.2026.372.Georlette V., Honfoga A., Dossou M., Moeyaert V. (2024) Exploring Universal Filtered Multi Carrier Waveform for Last Meter Connectivity in 6G: A Street-Lighting-Driven Approach with Enhanced Simulator for IoT Application Dimensioning. Future Internet. 16 (4). https://doi.org/10.3390/fi16040112.Georlette V., Honfoga A., Dossou M., Moeyaert V. (2024) Exploring Universal Filtered Multi Carrier Waveform for Last Meter Connectivity in 6G: A Street-Lighting-Driven Approach with Enhanced Simulator for IoT Application Dimensioning. Future Internet. 16 (4). https://doi.org/10.3390/fi16040112.Kanellopoulos D., Sharma V. K., Panagiotakopoulos T., Kameas A. (2023). Networking Architectures and Protocols for IoT Applications in Smart Cities: Recent Developments and Perspectives. Electronics. 12 (11). https://doi.org/10.3390/electronics12112490.Kanellopoulos D., Sharma V. K., Panagiotakopoulos T., Kameas A. (2023). Networking Architectures and Protocols for IoT Applications in Smart Cities: Recent Developments and Perspectives. Electronics. 12 (11). https://doi.org/10.3390/electronics12112490.Zannou S., Honfoga A., Dossou M., Moeyaert V. (2024) Carrier Frequency Offset Impact on Universal Filtered Multicarrier/Non-Uniform Constellations Performance: A Digital Video Broadcasting–Terrestrial, Second Generation Case Study. Telecom. 5 (4), 1205–1241. https://doi.org/10.3390/telecom5040061.Zannou S., Honfoga A., Dossou M., Moeyaert V. (2024) Carrier Frequency Offset Impact on Universal Filtered Multicarrier/Non-Uniform Constellations Performance: A Digital Video Broadcasting–Terrestrial, Second Generation Case Study. Telecom. 5 (4), 1205–1241. https://doi.org/10.3390/telecom5040061.Averina L. I., Lafickiy A. Y. (2022) Increasing of Bit Error Rate Performance for OFDM Systems Over Fading Channels. Physics of Wave Processes and Radio Systems. 25 (4), 39–45. https://doi.org/10.18469/1810-3189.2022.25.4.39-45.Averina L. I., Lafickiy A. Y. (2022) Increasing of Bit Error Rate Performance for OFDM Systems Over Fading Channels. Physics of Wave Processes and Radio Systems. 25 (4), 39–45. https://doi.org/10.18469/1810-3189.2022.25.4.39-45.Koivunen V., Keskin M. F., Wymeersch H., Valkama M., González-Prelcic N. (2024b) Multicarrier ISAC: Advances in Waveform Design, Signal Processing, and Learning under Nonidealities. IEEE Signal Processing Magazine. 41 (5), 17–30. https://doi.org/10.1109/msp.2024.3420492.Koivunen V., Keskin M. F., Wymeersch H., Valkama M., González-Prelcic N. (2024b) Multicarrier ISAC: Advances in Waveform Design, Signal Processing, and Learning under Nonidealities. IEEE Signal Processing Magazine. 41 (5), 17–30. https://doi.org/10.1109/msp.2024.3420492.D’Andreagiovanni F., Lakhlef H., Nardin A. (2020) A Matheuristic for Joint Optimal Power and Scheduling Assignment in DVB-T2 Networks. Algorithms. 13 (1). https://doi.org/10.3390/a13010027.D’Andreagiovanni F., Lakhlef H., Nardin A. (2020) A Matheuristic for Joint Optimal Power and Scheduling Assignment in DVB-T2 Networks. Algorithms. 13 (1). https://doi.org/10.3390/a13010027.

The authors declare that there are no conflicts of interest present.