Hassan Nadir Kheirallah

Performance analysis of centralized dynamic spectrum access via channel reservation mechanism in cognitive radio networks

Nehal M. El Azaly, Ehab F. Badran, Hassan Nadir Kheirallah et al. · Alexandria Engineering Journal · 2020 · 21 citations · Full text

Engineering, Computer Science, Computer Systems +17

Frequency dependence of effective path length in prediction of rain attenuation statistics

Hassan Nadir Kheirallah, J.P. Knight, Rasmus Løvenstein Olsen et al. · Electronics Letters · 1980 · 20 citations

Natural Sciences, Earth Sciences, Meteorology +9

Group Security Authentication and Key Agreement Protocol Built by Elliptic Curve Diffie Hellman Key Exchange for LTE Military Grade Communication

Karim H. Moussa, Ahmed H. El-Sakka, S.E. Shaaban et al. · IEEE Access · 2022 · 17 citations · Full text

Computing, Communication, Computer Science +17

Hybrid FSO/RF system over proposed random dust attenuation model based on real-time data combined with G–G atmospheric turbulence

Passant H. Mohamed, Mohamed A. El-Shimy, Hossam M. H. Shalaby et al. · Optics Communications · 2023 · 15 citations

Natural Sciences, Earth Sciences, Atmospheric Science +7

Centralized Dynamic Channel Reservation Mechanism via SDN for CR Networks Spectrum Allocation

Nehal M. El Azaly, Ehab F. Badran, Hassan Nadir Kheirallah et al. · IEEE Access · 2020 · 14 citations · Full text

Computing, Computer Science, Computer Systems +17