He received the B.Sc. degree from the Higher Institute of Engineering, Al Shorouk City, Egypt, in 2011, and the M.Sc. and Ph.D. degrees from the Faculty of Electronic Engineering, Menoufia University, Egypt, in 2018 and 2021, respectively. He works as an assistant professor at the Communication and Computer Engineering Department, Higher Institute of Engineering, Egypt, from 2021. He joined Ahlia University in September 2024 as an assistant professor. He deputed as an assistant professor in various academic places like the higher technological for engineering, Egypt, and the higher institute for aviation and communications, Egypt. He taught more than 10 different courses related to signal processing & systems, analog communications, digital communications, satellite communications, electronics, digital signal processing, antennas, wave propagation, and wireless communications. He has published several scientific papers in national and international conferences and journals. He has received the most-read article from the International Journal of Communication Systems (IJCS) in 2018 – 2019. He published various online courses on the Udemy platform that were rated as high-rated courses, and tens of thousands of students from +154 countries around the world enrolled in the courses.

Journal Publications:

1. Elmahallawy, T. Luo and Khaled Ramadan, “Communication-Efficient Federated Learning for LEO Satellite Networks Integrated with HAPs using Hybrid NOMA-OFDM,” in IEEE Journal on Selected Areas in Communications, doi: 10.1109/JSAC.2024.3365885, 2024.
2. Khaled Ramadan, “On the use of Walsh Domain Equalizer for Performance Enhancment of MIMO-OFDM Communication Systems,” in Telecommunication Systems Journal, Springer, https://doi.org/10.1007/s11235-023-01091-5,
3. Khaled Ramadan, “Walsh transform-based non-linear equalization algorithm for enhancing the efficiency of MIMO-OFDM communication,” the Wireless Networks Journal, Springer, D-22-00711R1, DOI : 10.1007/s11276-023-03440-3, 2023.
4. Khaled Ramadan, “Enhanced MIMO-DCT-OFDM System Using Cosine Domain Equalizer,” in the International Journal of Electronics, Taylor & Francis, doi.org/10.1080/00207217.2023.2235728, 2023.
5. Khaled Ramadan, ElHalawany, B.M. & Elbakry, M.S. Performance improvement for DCO-OFDM and ACO-OFDM systems using symbol time compression. Telecommun Syst 84, 77–100 (2023). https://doi.org/10.1007/s11235-023-01027-z, 2023.
6. Khaled Ramadan, M. Abdelhamed, and Mohamed S. ElBakry, ” Nonlinear Equalization for Performance Enhancement of FBMC Systems Using Walsh Transform,” in the IETE Journal of Research, Taylor & Francis, org/10.1080/03772063.2023.2256296, 2023.
7. Mohamed S. Elbakry, and Khaled Ramadan,” A TIME-MIRRORING (TM) SCHEME FOR ICI MITIGATION IN TIME-VARYING CHANNEL FOR DIGITAL VIDEO BROADCASTING (DVB) SYSTEMS,” Telecommunications and Radio Engineering, Begel House Inc., 10.1615/TelecomRadEng.2022037017 , vol. 82, no. 3, p. 1- 16, 2023.
8. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Performance enhancement of OFDM systems with lower-complexity using DST based on successive interference cancellation,” Digital Signal Processing, Elsiver, doi.org/10.1016/j.dsp.2020.102739, vol. 102, p. 102739, 2020.
9. Khaled Ramadan, Ahmed S. Fiky, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Joint Low-Complexity Equalization and CFO Estimation and Compensation for UWA-OFDM Communication Systems Based on Discrete Sine Transform,” Digital Signal Processing Journal, Elsevier, https://doi.org/1016/j.dsp.2019.02.004, vol. 09, pp. 142-149, 2019.
10. Khaled Ramadan, Moawad I. Dessouky, F. E. Abd-Elsamie, and S. Elagooz, “Virtual Quadrature Phase Shift Keying with Low-Complexity Equalization for Performance Enhancement of OFDM Systems,” AEU-International Journal of Electronics and Communications, Elsiver, https://doi.org/10.1016/j.aeue.2018.08.031, vol. 96, p. 199–206, 2018.
11. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Modified OFDM Configurations with Equalization and CFO Compensation for Performance Enhancement of OFDM Communication Systems Using Symmetry of the Fourier Transform,” AEU-International Journal of Electronics and Communications, Elsiver, https://doi.org/10.1016/j.aeue.2020.153247, vol. 126, p. 153247, 2020.
12. Kumar, Khaled Ramadan, P. Kumar, Moawad I. Dessouky, and F. E. Abd-Elasmie, “Enhanced OFDM-NOMA for Next Generation Wireless Communication: A Study of PAPR Reduction and Sensitivity to CFO and Estimation Errors,” AEU-International Journal of Electronics and Communications, 2019, https://doi.org/10.1016/j.aeue.2019.01.009, vol. 102, pp. 9-24, 2019.
13. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Joint Equalization and CFO Compensation for Performance Enhancement of MIMO-OFDM Communication Systems Using Different Transforms with Banded-Matrix Approximation,” AEU-International Journal of Electronics and Cmmunications, Elsiver, https://doi.org/10.1016/j.aeue.2020.153157, vol. 119, p. 153157, 2020.
14. Khaled Ramadan, Abdulrahamn Alturki, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “On the Performance of Joint Low-Complexity Equalization and CFO Compensation for SISO-OFDM Communication Systems with Chaotic Interleaving Using DCT,” International Journal of Communication systems, Wiley, https://doi.org/10.1002/dac.4585, p. e4585, 2021.
15. Khaled Ramadan, Abdulrahamn Alturki, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Equalization and CFO Compensation for SISO-OFDM Communication Systems with Chaotic Interleaving,” International Journal of Electronics, Taylor & Francis, https://doi.org/10.1080/00207217.2020.1870736, 2021.
16. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Joint Low-Complexity Equalization and CFO Compensation for DCT-OFDM Communication Systems Based on SIC” the IET Communications,” The IET communications, DOI:10.1049/iet-com.2019.0740, vol. 14, no. 20, p. 3549 – 3559, 2020.
17. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Non-Linear Equalization and CFO Compensation for MIMO-OFDM Communication Systems based on DWT,” International Journal of Eectronics, Taylor & Francis, https://doi.org/10.1080/00207217.2020.1756458, pp. 1-24, 2020.
18. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Joint low‐complexity nonlinear equalization and carrier frequency offset compensation for multiple‐input multiple‐output orthogonal frequency division multiplexing communication systems,” Transactions on Emerging Telecommunications Technologies, Wiley, DOI:10.1002/ett.3874, vol. 31, no. 6, p. e3874, 2020.
19. Khaled Ramadan, Moawad I. Dessouky, Fathi E. Abd-Elamie, and Ahmed S. Fiky, “Equalization and Blind CFO Estimation for Performance Enhancement of OFDM Communication Systems Using Discrete Cosine Transform,” International Journal of Communication Systems, DOI: 10.1002/dac.3984, vol. 33, no. 3, p. e3984, 2020.
20. Khaled Ramadan, Khalil F. Ramadan, Ahmed S. Fiky, H. Alam, Moawad I. Dessouky, and Fathi E. Abd El-Samie, “Joint Low-Complexity Equalization and CFO Estimation and Compensation for UWA-OFDM Communication Systems,” International Journal of Communication Systems, DOI:10.1002/dac.3972, vol. 33, no. 3, p. e3972, 2020.
21. Trivedi, Khaled Ramadan, P. Kumar, Moawad I. Dessouky, and F. E. Abd El-Samie, “Trigonometric Transforms and Precoding Strategies for OFDM-based Uplink Hybrid Multi-Carrier Non-Orthogonal Multiple Access,” Transactions on Emerging Telecommunications Technologies, Wiley, DOI: 10.1002/ett.3694, vol. 30, no. 12, p. e3694, 2019.
22. Khaled Ramadan, Moawad I. Dessouky, S. Elagooz, M. Elkordy, and F. E. Abd El-Samie, “Carrier frequency offsets estimation in UWA-OFDM communication systems using Zadoff-Chu sequences,” International Journal of Electronics Letters, Taylor & Francis, DOI:10.1080/21681724.2018.1461249, vol. 7, no. 2, pp. 127-142, 2019.
23. Khaled Ramadan, Moawad I. Dessouky, M. Elkordy, S. Elagooz, and F. E. Abd El-Samie, “Joint Low-Complexity Equalization and Carrier Frequency Offsets Compensation for Underwater Acoustic OFDM Communication Systems with Banded-Matrix Approximation at Different Channel Conditions,” International Journal of Communication Systems, Wiley, https://doi.org/10.1002/dac.3779, vol. 31, no. 17, p. e3779, 2018.
24. Khaled Ramadan, Moawad I. Dessouky, and Fathi E. Abd El-Samie,” Equalization and Co-Carrier Frequency Offsets Compensations for UWA-OFDM Communication Systems,” Wireless Personal Communication Journal, Springer, https://doi.org/10.1007/s11277-021-09453-5 , vol. 124, p. 2229-2245, 2022.
25. Khaled Ramadan, Moawad I. Dessouky, M. Elkordy, S. Elagooz, and F. E. Abd El-Samie, “Equalization and Carrier Frequency Offset Compensation for Underwater Acoustic OFDM Systems,” Annals of Data Science Journal, Springer, 10.1007/s40745-017-0127-y, 5, no. 2, p. 259–272, 2018.
26. Khaled Ramadan, Moawad I. Dessouky, M. Elkordy, S. Elagooz, and Fathi E. Abd El-Samie, “Joint Equalization and Coding Schemes for Underwater Acoustic MIMO-OFDM Systems,” Menoufia Journal of Electronic Engineering Research, MJEER, 27, no. 1, 2018.

Conference papers:

1. Mohamed Abdel-Moneim, S. El-Rabaie, Fathi E. Abd El-Samie, Khaled Ramadan, Narmin Abdel-Salam, Khlil F. Ramadan “Efficient CNN-Based Automatic Modulation classification in UWA Communication Systems Using Constellation Diagrams and Gabor Filtering,” 2023 3rd International Conference on Electronic Engineering (ICEEM), Menouf-Egypt.

Awards:

• He has received the most-read article from the International Journal of Communication Systems (IJCS) in 2018 – 2019.