Ibrahim Aqeel
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Ibrahim Aqeel has a total of 38 co-authors. Here are the top co-authors by number of shared publications:
- Ibrahim Mohsen Khormi
College of Computer Science and IT, Jazan University, Jazan, Saudi Arabia
6 shared publications - Shadab Alam
Jazan University
4 shared publications - Emad S. Hassan
Department of Electrical and Electronics Engineering, College of Engineering and Computer Science, Jazan University, Jizan 45142, Saudi Arabia
3 shared publications - Mohammed Shuaib
Jazan University
3 shared publications - Khaled Ramadan
Department of Telecommunication Engineering, College of Engineering, Ahlia University, Manama 10878, Bahrain
2 shared publications - Ahlam Almusharraf
Department of management, College of Business Administration, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
1 shared publication
Latest Publications
- Open Access
- 22 October 2026
- Published by MDPI AG in Future Internet
- Vol. 18  (11) , 577
SmartGate: A Prototype of AI–Blockchain-Enabled Academic Certificate Management System
Technological innovations have exposed vulnerabilities in traditional certificate verification systems. Conventional methods of verification cannot handle complex, evolving fraud systems and are susceptible to manipulation and human error. They can verify the authenticity of validly signed certificates but fail to detect behavioral fraud throughout the certificate lifecycle. This paper presents SmartGate—a secure framework that combines AI and blockchain to detect behavioral fraud and protect the integrity of academic certificates. The framework uses AI and feature engineering to capture user behavioral patterns indicative of fraud. The proposed SmartGate is designed to screen a certificate’s behavioral context before allowing it to be stored on the blockchain. University student records data were used to evaluate the proposed SmartGate. Specifically, the normal academic records and certificate workflow are real, while the suspicious cases were synthetically generated via controlled fraud scenarios. A machine learning algorithm is used to model the relationship between user behavior and the legitimacy of certificates. The framework introduces an SHAP explainable AI approach to interpret the outcomes for transparency and trust. To provide a secure, tamper-proof system, blockchain is deployed to anchor the approved certificates. A prototype of the proposed SmartGate has been developed. As a proof-of-concept implementation, the XGBoost model was used to validate the certificate-screening stage of the proposed SmartGate system. Also, a local Ethereum environment was used to implement the blockchain anchoring stage. Experimental results demonstrate the technical feasibility of the proposed SmartGate framework, including its ability to provide feature-level model explainability, within a controlled environment.
- 22 October 2026
- Published by MDPI AG in Future Internet
- Vol. 18  (11) , 577
Open AccessSmartGate: A Prototype of AI–Blockchain-Enabled Academic Certificate Management System
Technological innovations have exposed vulnerabilities in traditional certificate verification systems. Conventional methods of verification cannot handle complex, evolving fraud systems and are susceptible to manipulation and human error. They can verify the authenticity of validly signed certificates but fail to detect behavioral fraud throughout the certificate lifecycle. This paper presents SmartGate—a secure framework that combines AI and blockchain to detect behavioral fraud and protect the integrity of academic certificates. The framework uses AI and feature engineering to capture user behavioral patterns indicative of fraud. The proposed SmartGate is designed to screen a certificate’s behavioral context before allowing it to be stored on the blockchain. University student records data were used to evaluate the proposed SmartGate. Specifically, the normal academic records and certificate workflow are real, while the suspicious cases were synthetically generated via controlled fraud scenarios. A machine learning algorithm is used to model the relationship between user behavior and the legitimacy of certificates. The framework introduces an SHAP explainable AI approach to interpret the outcomes for transparency and trust. To provide a secure, tamper-proof system, blockchain is deployed to anchor the approved certificates. A prototype of the proposed SmartGate has been developed. As a proof-of-concept implementation, the XGBoost model was used to validate the certificate-screening stage of the proposed SmartGate system. Also, a local Ethereum environment was used to implement the blockchain anchoring stage. Experimental results demonstrate the technical feasibility of the proposed SmartGate framework, including its ability to provide feature-level model explainability, within a controlled environment.
- 27 September 2026
- Published by Springer Nature in Cluster Computing
- Vol. 29  (14) , 803
FedDeepRiskNet++: a privacy-enhanced federated learning framework for secure and scalable medical IoT systems
- 27 September 2026
- Published by Springer Nature in Cluster Computing
- Vol. 29  (14) , 803
FedDeepRiskNet++: a privacy-enhanced federated learning framework for secure and scalable medical IoT systems
- Open Access
- 25 August 2026
- Published by Springer Nature in Journal of King Saud University Computer and Information Sciences
- Vol. 38  (7) , 766
OPAQUE-IoT: an optimization-driven PUF-Blockchain authenticated key agreement protocol with adaptive resource management for constrained IoT networks
- 25 August 2026
- Published by Springer Nature in Journal of King Saud University Computer and Information Sciences
- Vol. 38  (7) , 766
Open AccessOPAQUE-IoT: an optimization-driven PUF-Blockchain authenticated key agreement protocol with adaptive resource management for constrained IoT networks
- 13 August 2026
- Published by Springer Nature in The Journal of Supercomputing
- Vol. 82  (12) , 635
Blockchain-assisted smart grid scheduling using energy-efficient swarm and deep learning models
- 13 August 2026
- Published by Springer Nature in The Journal of Supercomputing
- Vol. 82  (12) , 635
Blockchain-assisted smart grid scheduling using energy-efficient swarm and deep learning models
- Open Access
AI-Driven Threat Hunting in Enterprise Networks Using Hybrid CNN-LSTM Models for Anomaly Detection
Objectives: This study aims to present an AI-driven threat-hunting framework that automates both hypothesis generation and hypothesis validation through a hybrid deep learning model that combines Convolutional Neural Networks (CNN) with Long Short-Term Memory (LSTM) networks. The objective is to operationalize proactive threat hunting by embedding anomaly detection within a structured workflow, improving detection performance, reducing analyst workload, and strengthening overall security posture. Methods: The framework begins with automated hypothesis generation, in which the model analyzes network flows, telemetry data, and logs sourced from IoT/IIoT devices, Windows/Linux systems, and interconnected environments represented in the TON_IoT dataset. Deviations from baseline behavior are detected as potential threat indicators, and hypotheses are prioritized according to anomaly confidence scores derived from output probabilities. Validation is conducted through iterative classification, where CNN-extracted spatial features and LSTM-captured temporal features are jointly used to confirm or refute hypotheses, minimizing manual data pivoting and contextual enrichment. Principal Component Analysis (PCA) and Recursive Feature Elimination with Random Forest (RFE-RF) are employed to extract and rank features based on predictive importance. Results: The hybrid model, trained on the TON_IoT dataset, achieved strong performance metrics: 99.60% accuracy, 99.71% precision, 99.32% recall, an AUC of 99%, and a 99.58% F1-score. These results outperform baseline models such as Random Forest and Autoencoder. By integrating spatial and temporal feature extraction, the model effectively identifies anomalies with minimal false positives and false negatives, while the automation of the hypothesis lifecycle significantly reduces analyst workload. Conclusions: Automating threat-hunting processes through hybrid deep learning shifts organizations from reactive to proactive defense. The proposed framework improves threat visibility, accelerates response times, and enhances overall security posture. The findings offer valuable insights for researchers, practitioners, and policymakers seeking to advance AI adoption in threat intelligence and enterprise security.
Open AccessAI-Driven Threat Hunting in Enterprise Networks Using Hybrid CNN-LSTM Models for Anomaly Detection
Objectives: This study aims to present an AI-driven threat-hunting framework that automates both hypothesis generation and hypothesis validation through a hybrid deep learning model that combines Convolutional Neural Networks (CNN) with Long Short-Term Memory (LSTM) networks. The objective is to operationalize proactive threat hunting by embedding anomaly detection within a structured workflow, improving detection performance, reducing analyst workload, and strengthening overall security posture. Methods: The framework begins with automated hypothesis generation, in which the model analyzes network flows, telemetry data, and logs sourced from IoT/IIoT devices, Windows/Linux systems, and interconnected environments represented in the TON_IoT dataset. Deviations from baseline behavior are detected as potential threat indicators, and hypotheses are prioritized according to anomaly confidence scores derived from output probabilities. Validation is conducted through iterative classification, where CNN-extracted spatial features and LSTM-captured temporal features are jointly used to confirm or refute hypotheses, minimizing manual data pivoting and contextual enrichment. Principal Component Analysis (PCA) and Recursive Feature Elimination with Random Forest (RFE-RF) are employed to extract and rank features based on predictive importance. Results: The hybrid model, trained on the TON_IoT dataset, achieved strong performance metrics: 99.60% accuracy, 99.71% precision, 99.32% recall, an AUC of 99%, and a 99.58% F1-score. These results outperform baseline models such as Random Forest and Autoencoder. By integrating spatial and temporal feature extraction, the model effectively identifies anomalies with minimal false positives and false negatives, while the automation of the hypothesis lifecycle significantly reduces analyst workload. Conclusions: Automating threat-hunting processes through hybrid deep learning shifts organizations from reactive to proactive defense. The proposed framework improves threat visibility, accelerates response times, and enhances overall security posture. The findings offer valuable insights for researchers, practitioners, and policymakers seeking to advance AI adoption in threat intelligence and enterprise security.
- Open Access
- 5 November 2025
- Published by MDPI AG in Mathematics
- Vol. 13  (21) , 3545
Robust OTFS Detection via MMSE-DFE Equalization for ISAC in Doubly Dispersive Channels
This paper presents a detailed performance evaluation of a proposed Orthogonal Time Frequency Space (OTFS) system for Integrated Sensing and Communications (ISAC) in doubly dispersive wireless channels, characterized by both delay and Doppler spreads. The system is benchmarked against conventional Orthogonal Frequency Division Multiplexing (OFDM) schemes with Linear Minimum Mean Square Error (LMMSE) and Minimum Mean Square Error Decision Feedback Equalizer (MMSE-DFE) receivers. Through extensive simulations, the paper assesses Bit Error Rate (BER) and throughput performance under various Signal-to-Noise Ratios (SNRs), channel estimation error percentages, and multipath conditions. Results indicate that the proposed OTFS system is highly suitable for ISAC scenarios due to its delay-Doppler domain resilience and robustness to mobility, delivering superior BER performance, e.g., at 20 dB SNR with 0% estimation error, compared to for OFDM-LMMSE. It also sustains 64 Mbps throughput under ideal conditions, though it shows sensitivity under severe estimation errors and rich multipath. In contrast, OFDM with LMMSE demonstrates smaller performance variation, maintaining over 61 Mbps throughput even at 100% estimation error and 15 scattered path components. These results suggest that OTFS is an effective waveform for ISAC when accurate channel estimation is available, while the corresponding OFDM with MMSE-DFE remains a robust fallback in highly uncertain environments.- 5 November 2025
- Published by MDPI AG in Mathematics
- Vol. 13  (21) , 3545
Open AccessRobust OTFS Detection via MMSE-DFE Equalization for ISAC in Doubly Dispersive Channels
This paper presents a detailed performance evaluation of a proposed Orthogonal Time Frequency Space (OTFS) system for Integrated Sensing and Communications (ISAC) in doubly dispersive wireless channels, characterized by both delay and Doppler spreads. The system is benchmarked against conventional Orthogonal Frequency Division Multiplexing (OFDM) schemes with Linear Minimum Mean Square Error (LMMSE) and Minimum Mean Square Error Decision Feedback Equalizer (MMSE-DFE) receivers. Through extensive simulations, the paper assesses Bit Error Rate (BER) and throughput performance under various Signal-to-Noise Ratios (SNRs), channel estimation error percentages, and multipath conditions. Results indicate that the proposed OTFS system is highly suitable for ISAC scenarios due to its delay-Doppler domain resilience and robustness to mobility, delivering superior BER performance, e.g., at 20 dB SNR with 0% estimation error, compared to for OFDM-LMMSE. It also sustains 64 Mbps throughput under ideal conditions, though it shows sensitivity under severe estimation errors and rich multipath. In contrast, OFDM with LMMSE demonstrates smaller performance variation, maintaining over 61 Mbps throughput even at 100% estimation error and 15 scattered path components. These results suggest that OTFS is an effective waveform for ISAC when accurate channel estimation is available, while the corresponding OFDM with MMSE-DFE remains a robust fallback in highly uncertain environments. - Open Access
- 11 October 2025
- Published by MDPI AG in Mathematics
- Vol. 13  (20) , 3258
Joint Wavelet and Sine Transforms for Performance Enhancement of OFDM Communication Systems
This paper presents a modified Orthogonal Frequency Division Multiplexing (OFDM) system that combines Discrete Wavelet Transform (DWT) with Discrete Sine Transform (DST) to enhance data rate capacity over traditional Discrete Fourier Transform (DFT)-based OFDM systems. By applying Inverse Discrete Wavelet Transform (IDWT) to the modulated Binary Phase Shift Keying (BPSK) bits, the constellation diagram reveals that half of the time-domain samples after single-level Haar IDWT are zeros, while the other half are real. The proposed system utilizes these zero values, modulating them with the DST (IDST) and assigning them as the imaginary part of the signal. Performance comparisons demonstrate that the Bit-Error-Rate (BER) of this hybrid DWT-DST configuration lies between that of BPSK and Quadrature Phase Shift Keying (QPSK) in a DWT-based system, while also achieving data rate improvement of . Additionally, simulation results indicate that the proposed approach demonstrates stable performance even in the presence of estimation errors, with less than 3.4% BER degradation for moderate errors, and consistently better robustness than QPSK-based systems while offering improved data rate efficiency over BPSK. This novel configuration highlights the potential for more efficient and reliable data transmission in OFDM systems, making it a promising alternative to conventional DWT or DFT-based methods.- 11 October 2025
- Published by MDPI AG in Mathematics
- Vol. 13  (20) , 3258
Open AccessJoint Wavelet and Sine Transforms for Performance Enhancement of OFDM Communication Systems
This paper presents a modified Orthogonal Frequency Division Multiplexing (OFDM) system that combines Discrete Wavelet Transform (DWT) with Discrete Sine Transform (DST) to enhance data rate capacity over traditional Discrete Fourier Transform (DFT)-based OFDM systems. By applying Inverse Discrete Wavelet Transform (IDWT) to the modulated Binary Phase Shift Keying (BPSK) bits, the constellation diagram reveals that half of the time-domain samples after single-level Haar IDWT are zeros, while the other half are real. The proposed system utilizes these zero values, modulating them with the DST (IDST) and assigning them as the imaginary part of the signal. Performance comparisons demonstrate that the Bit-Error-Rate (BER) of this hybrid DWT-DST configuration lies between that of BPSK and Quadrature Phase Shift Keying (QPSK) in a DWT-based system, while also achieving data rate improvement of . Additionally, simulation results indicate that the proposed approach demonstrates stable performance even in the presence of estimation errors, with less than 3.4% BER degradation for moderate errors, and consistently better robustness than QPSK-based systems while offering improved data rate efficiency over BPSK. This novel configuration highlights the potential for more efficient and reliable data transmission in OFDM systems, making it a promising alternative to conventional DWT or DFT-based methods. - Open Access
- 10 June 2024
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 19  (6) , e0303313
E2SVM: Electricity-Efficient SLA-aware Virtual Machine Consolidation approach in cloud data centers
Cloud data centers present a challenge to environmental sustainability because of their significant energy consumption. Additionally, performance degradation resulting from energy management solutions, such as virtual machine (VM) consolidation, impacts service level agreements (SLAs) between cloud service providers and users. Thus, to achieve a balance between efficient energy consumption and avoiding SLA violations, we propose a novel VM consolidation algorithm. Conventional algorithms result in unnecessary migrations when improperly selecting VMs. Therefore, our proposed E2SVM algorithm addresses this issue by selecting VMs with high load fluctuations and minimal resource usage from overloaded servers. These selected VMs are then placed on normally loaded servers, considering their stability index. Moreover, our approach prevents server underutilization by either applying all or no VM migrations. Simulation results demonstrate a 12.9% decrease in maximum energy consumption compared with the minimum migration time VM selection policy. In addition, a 47% reduction in SLA violations was observed when using the medium absolute deviation as the overload detection policy. Therefore, this approach holds promise for real-world data centers because it minimizes energy waste and maintains low SLA violations.
- 10 June 2024
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 19  (6) , e0303313
Open AccessE2SVM: Electricity-Efficient SLA-aware Virtual Machine Consolidation approach in cloud data centers
Cloud data centers present a challenge to environmental sustainability because of their significant energy consumption. Additionally, performance degradation resulting from energy management solutions, such as virtual machine (VM) consolidation, impacts service level agreements (SLAs) between cloud service providers and users. Thus, to achieve a balance between efficient energy consumption and avoiding SLA violations, we propose a novel VM consolidation algorithm. Conventional algorithms result in unnecessary migrations when improperly selecting VMs. Therefore, our proposed E2SVM algorithm addresses this issue by selecting VMs with high load fluctuations and minimal resource usage from overloaded servers. These selected VMs are then placed on normally loaded servers, considering their stability index. Moreover, our approach prevents server underutilization by either applying all or no VM migrations. Simulation results demonstrate a 12.9% decrease in maximum energy consumption compared with the minimum migration time VM selection policy. In addition, a 47% reduction in SLA violations was observed when using the medium absolute deviation as the overload detection policy. Therefore, this approach holds promise for real-world data centers because it minimizes energy waste and maintains low SLA violations.
- Open Access
- 4 April 2024
- Published by Science Research Society in Journal of Electrical Systems
- Vol. 20  (3s) , 807-816
Enhancing Security and Energy Efficiency in Wireless Sensor Networks for IoT Applications
Wireless Sensor Networks (WSNs) are fundamental components within the Internet of Things (IoT) scene, empowering information collection and transmission in different applications. This research papers on upgrading the security and vitality effectiveness of WSNs for ideal IoT usefulness. Novel strategies were created and assessed to address these vital perspectives. Security improvements included the usage of lightweight cryptographic calculations, intrusion detection systems (IDS), and secure directing conventions. These measures essentially reinforced organized strength against cyber dangers, with interruption discovery rates surpassing 95% and secure steering conventions accomplishing a strength score of over 97%. Vitality productivity optimizations enveloped communication convention improvements, information accumulation strategies, and energetic control administration methodologies. These procedures come about in outstanding decreases in vitality utilization, with optimized conventions diminishing vitality utilization by up to 30% and information conglomeration techniques yielding vitality reserve funds of up to 50%. Test assessments were conducted utilizing both simulation-based approaches and real-world organizations. Recreation comes about, obtained utilizing NS-3, showcasing the viability of the proposed strategies over different network topologies, activity designs, and attack scenarios. Real-world experimentation employing a WSN testbed approved the viable achievability and viability of the techniques. Comparative investigations with existing writing highlighted the oddity and importance of the commitments, checking considerable progressions in WSN security and vitality proficiency.
- 4 April 2024
- Published by Science Research Society in Journal of Electrical Systems
- Vol. 20  (3s) , 807-816
Open AccessEnhancing Security and Energy Efficiency in Wireless Sensor Networks for IoT Applications
Wireless Sensor Networks (WSNs) are fundamental components within the Internet of Things (IoT) scene, empowering information collection and transmission in different applications. This research papers on upgrading the security and vitality effectiveness of WSNs for ideal IoT usefulness. Novel strategies were created and assessed to address these vital perspectives. Security improvements included the usage of lightweight cryptographic calculations, intrusion detection systems (IDS), and secure directing conventions. These measures essentially reinforced organized strength against cyber dangers, with interruption discovery rates surpassing 95% and secure steering conventions accomplishing a strength score of over 97%. Vitality productivity optimizations enveloped communication convention improvements, information accumulation strategies, and energetic control administration methodologies. These procedures come about in outstanding decreases in vitality utilization, with optimized conventions diminishing vitality utilization by up to 30% and information conglomeration techniques yielding vitality reserve funds of up to 50%. Test assessments were conducted utilizing both simulation-based approaches and real-world organizations. Recreation comes about, obtained utilizing NS-3, showcasing the viability of the proposed strategies over different network topologies, activity designs, and attack scenarios. Real-world experimentation employing a WSN testbed approved the viable achievability and viability of the techniques. Comparative investigations with existing writing highlighted the oddity and importance of the commitments, checking considerable progressions in WSN security and vitality proficiency.
- 30 October 2023
- Published by Springer Nature in Wireless Networks
- Vol. 30  (2) , 987-1011
Novel multiple access protocols against Q-learning-based tunnel monitoring using flying ad hoc networks
- 30 October 2023
- Published by Springer Nature in Wireless Networks
- Vol. 30  (2) , 987-1011
Novel multiple access protocols against Q-learning-based tunnel monitoring using flying ad hoc networks