Polynomial and nonpolynomial spline approaches to the numerical solution of second order boundary value problems. - Mohamed A. Ramadan; I. F. Lashien; Waheed K. Zahra (Appl. Math. Comput., 2007)

High order accuracy nonpolynomial spline solutions for 2muth order two point boundary value problems. - Mohamed A. Ramadan; I. F. Lashien; Waheed K. Zahra (Appl. Math. Comput., 2008)

A class of methods based on a septic non-polynomial spline function for the solution of sixth-order two-point boundary value problems. - Mohamed A. Ramadan; I. F. Lashien; Waheed K. Zahra (Int. J. Comput. Math., 2008)

Exponential spline solutions for a class of two point boundary value problems over a semi-infinite range. - Waheed K. Zahra (Numer. Algorithms, 2009)

A smooth approximation based on exponential spline solutions for nonlinear fourth order two point boundary value problems. - Waheed K. Zahra (Appl. Math. Comput., 2011)

Finite-difference technique based on exponential splines for the solution of obstacle problems. - Waheed K. Zahra (Int. J. Comput. Math., 2011)

The Use of Cubic Splines in the Numerical Solution of Fractional Differential Equations. - Waheed K. Zahra; Samah M. Elkholy (Int. J. Math. Math. Sci., 2012)

Quadratic spline solution for boundary value problem of fractional order. - Waheed K. Zahra; Samah M. Elkholy (Numer. Algorithms, 2012)

Discrete spline methods for solving two point fractional Bagley-Torvik equation. - Waheed K. Zahra; Marnix Van Daele (Appl. Math. Comput., 2017)

Rational spline-nonstandard finite difference scheme for the solution of time-fractional Swift-Hohenberg equation. - Waheed K. Zahra; Samah M. Elkholy; M. Fahmy (Appl. Math. Comput., 2019)

Exponentially fitted methods for solving time fractional nonlinear reaction-diffusion equation. - Waheed K. Zahra; Mahmoud A. Nasr; Marnix Van Daele (Appl. Math. Comput., 2019)

Exponentially fitted methods for solving two-dimensional time fractional damped Klein-Gordon equation with nonlinear source term. - Waheed K. Zahra; Mahmoud A. Nasr (Commun. Nonlinear Sci. Numer. Simul., 2019)

Cooperative Spectrum Sharing Scheme for Enhancing Primary User Performance under Denial of Service Attack. - Ahmed N. Elbattrawy; Ahmed H. Abd El-Malek; Sherif I. Rabia; Waheed K. Zahra (SIMULTECH, 2021)

Dynamic Spectrum Access for RF-powered Ambient Backscatter Cognitive Radio Networks. - Ahmed Y. Zakariya; Sherif I. Rabia; Waheed K. Zahra (SIMULTECH, 2021)

Optimal decision making in multi-channel RF-powered cognitive radio networks with ambient backscatter capability. - Ahmed Y. Zakariya; Sherif I. Rabia; Waheed K. Zahra (Comput. Networks, 2021)

A Modified Polynomial Preserving Recovery Technique. - Mohamed Barakat; Waheed K. Zahra; Ahmed Elsaid (SIMULTECH, 2022)

Analyzing Age of Information in Prioritized Status Update Systems using Probabilistic Hybrid Discipline. - Tamer E. Fahim; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (SIMULTECH, 2022)

Stability analysis of COVID-19 model with fractional-order derivative and a delay in implementing the quarantine strategy. - M. M. Hikal; M. M. A. El-Sheikh; Waheed K. Zahra (J. Appl. Math. Comput., 2022)

Model-based Bayesian reinforcement learning for enhancing primary user performance under jamming attack. - Ahmed N. Elbattrawy; Ahmed H. Abd El-Malek; Sherif I. Rabia; Waheed K. Zahra (Ad Hoc Networks, 2023)

Packet Drop Rate Minimization with AoI Constraint in an Energy-Harvesting Cognitive Radio Network. - Mohamed F. El-Sherif; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (VTC Fall, 2024)

Secrecy Performance of Joint Antenna and User Selection in Cognitive Ambient Backscattering Communications. - Ahmed N. Elbattrawy; Ahmed H. Abd El-Malek; Sherif I. Rabia; Waheed K. Zahra (VTC Fall, 2024)

Age of Information Optimization Using a Hybrid Preemptive/Non-Preemptive Discipline. - Tamer E. Fahim; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (VTC Fall, 2024)

Mosquito suppression via Filippov incompatible insect technique. - Doaa M. Fawzy; Ayman A. Arafa; Ahmed Elsaid; Waheed K. Zahra (Appl. Math. Comput., 2024)

A new approach for recovering the gradient and a posteriori error estimates. - Mohamed Barakat; Waheed K. Zahra; Ahmed Elsaid (Comput. Math. Appl., 2024)

Age of information minimization in hybrid cognitive radio networks under a timely throughput constraint. - Mohamed F. El-Sherif; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (Perform. Evaluation, 2024)

Security-reliability trade-off analysis for transmit antenna selection in cognitive ambient backscatter communications. - Ahmed N. Elbattrawy; Ahmed H. Abd El-Malek; Sherif I. Rabia; Waheed K. Zahra (Perform. Evaluation, 2024)

Analyzing the age of information in prioritized status update systems under an interruption-based hybrid discipline. - Tamer E. Fahim; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (Perform. Evaluation, 2024)

Enhancing information freshness in multi-class mobile edge computing systems using a hybrid discipline. - Tamer E. Fahim; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (Computing, 2024)

Optimizing Age of Information for Energy Harvesting Systems Using an Energy-Aware Hybrid Preemptive/Non-Preemptive Discipline. - Tamer E. Fahim; Ahmed H. Abd El-Malek; Waheed K. Zahra; Sherif I. Rabia (ICT, 2025)

Lyapunov optimization-based power control policy for time-critical applications in a hybrid cognitive radio IoT network. - Mohamed F. El-Sherif; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (Ad Hoc Networks, 2025)

Minimizing Age of Information in Multi-Class Systems Using an Elapsed-Time-Based Hybrid Service Discipline. - Tamer E. Fahim; Sherif I. Rabia; Ahmed H. Abd El-Malek; Waheed K. Zahra (IEEE Open J. Commun. Soc., 2025)