Journal Publications

1.  Ehab.M.Mohamed, S. Hashima, K. Hatano, and  M. Rihan,"Mobility Management in 3D Unified 6G Networks: Challenges, Opportunities and Future Directions" ICT Express, 2025.

2. S. Hashima, A. Gendia, K. Hatano, O. Muta, M. S. Nada and E. M. Mohamed, "Next-Gen UAV-Satellite Communications: AI Innovations and Future Prospects," IEEE Open Journal of Vehicular Technology, 2025, doi: 10.1109/OJVT.2025.3587028 

3. S. Hashima, M.H. Saad, A.B. Ahmad, et al. "Effective deep learning aided vehicle classification approach using Seismic Data" Scientific Reports 15, 22624 (2025). 

4. H. M. Kasem, H. S. Khallaf, and S. Hashima," Compressed Automatic Modulation Recognition Deep Learning Network Based on Bi-LSTM (CSBi-LSTM) " Journal of Communications, vol. 20, no. 3, 2025.  https://doi.org/10.12720/jcm.20.3.358-370

5. E.M.Mohamed, M. Alnakhli, S. Hashima, "Delay-Doppler-Based Joint mmWave Beamforming and UAV Selection in Multi-UAV-Assisted Vehicular Communications" Aerospace 2025, 12, 757. https://doi.org/10.3390/aerospace12090757 

6. E.M.Mohamed, H.S.Hussein, M. A. Alnakhli, S. Hashima, OTFS-Based Handover Triggering in UAV Networks, Drones, 2025,  https://doi.org/10.3390/drones9030185 

7. E.M. Mohamed, S. Hashima, UAV selection for high-speed train communication using OTFS modulation. Scientific Reports 15, 3343 (2025). https://doi.org/10.1038/s41598-024-84354-8.

8. S. Hashima, Z. M. Fadlullah, M. M. Fouda, E. M. Mohamed, K. Hatano, B. M. ElHalawany, and M. Guizani, “On Softwarization of Intelligence in 6G Networks for Ultra-Fast Optimal Policy Selection: Challenges and Opportunities,” IEEE Network, vol. 37, no. 2, pp. 190-197, March/April 2023, doi: 10.1109/MNET.103.2100587.

9. Mohamed H. Saad, Sherief Hashima, Ahmed I. Omar, Mostafa M. Fouda, and Abdel Rahman Said. “Deep learning approach for cable partial discharge pattern identification.” Electrical Engineering (2024).

10.  X. Jiang, S. Hashima, K. Hatano, and E. Takimoto, “Online Job Scheduling with K Servers”, Foundations of Computer Science, IEICE Transactions, Vol.E107-D, No.3, Mar. 2024.

11. B.M. Elhalawany, S. Hashima,  Wali Ullah Khan, Xingwang Li, and E.M. Mohamed,” Next Generation LEO Satellite Constellation Networks: Opportunities, Applications, and Challenges”, China Communications 2024.

12. A. Gendia, O. Muta, S. Hashima and K. Hatano, "Energy-Efficient Trajectory Planning With Joint Device Selection and Power Splitting for mmWaves-Enabled UAV-NOMA Networks," in IEEE Transactions on Machine Learning in Communications and Networking, vol. 2, pp. 617-632, 2024, doi: 10.1109/TMLCN.2024.3396438.

13. M. Alnakhli, E.M.Mohamed; W.M. Abdulkawi, S. Hashima, Joint User Association and Power Control in UAV Network: A Graph Theoretic Approach. Electronics 2024, 13, 779. https://doi.org/10.3390/electronics13040779.

14. S. Hashima, M. M. Fouda, S. Sakib, Z. Md Fadlullah, K. Hatano, E. M. Mohamed, and X. Shen, “Energy-Aware Hybrid RF-VLC Multi-Band Selection in D2D Communication: A Stochastic Multi-Armed Bandit Approach,” IEEE Internet of Things Journal, vol. 9, no. 18, pp. 18002-18014, 2022.

15. H. S. Khallaf, S. Hashima, M. Rihan, E. M. Mohamed and H. M. Kasem, "Quantifying Impact of Pointing Errors on Secrecy Performance of UAV-Based Relay Assisted FSO Links," in IEEE Internet of Things Journal, 2023, doi: 10.1109/JIOT.2023.3297857.

16. E. M. Mohamed, S. Hashima, K. Hatano, E. Takimoto and M. Abdel-Nasser, "Load Balancing Multi-Player MAB Approaches for RIS-Aided mmWave User Association," in IEEE Access, vol. 11, pp. 15816-15830, (2023), doi: 10.1109/ACCESS.2023.3244781.

17. E. M. Mohamed, S. Hashima, K. Hatano, and B. M. ElHalawany, “Leveraging artificial intelligence for reconfigurable intelligent surface-aided 6G networks.” China Communications, 2023 pp. 1–13.

18. E. M. Mohamed, S. Hashima, K. Hatano, and H. Khallaf, “LEO-Assisted Aerial Deployment in Post-Disaster Scenarios Using a Combinatorial Bandit and Genetic Algorithmic Approach”, MDPI Electronics, 2023, doi.org/10.3390/electronics12244964.

19. S. Hashima, K. Hatano, E.Takimoto, E.M. Mohamed, "Budgeted Thompson Sampling for IRS Enabled WiGig Relaying". MDPI Electronics (2023), 12, 1146. https://doi.org/10.3390/electronics12051146

20. R. Hosny, S. Hashima,  K. Hatano, E.M.Mohamed,  B.M. Elhalawany, (2023). "Budgeted Bandits for Power Allocation and Trajectory Planning in UAV-NOMA Aided Networks". MDPI Drones, 2023.

21. R. Hosny, S. Hashima, K. Hatano, E.M.Mohamed,  B.M. Elhalawany, (2023). "Budget-Constrained MAB for Trajectory Planning in Aerial-Aided Emergency Networks". Hindawi Wireless Communications and Mobile Computing, 2023.

22. M.H.Saad, S. Hashima, W.Sayed, E.H. El-Shazly,; A.H.Madian, M. M. Fouda, "Early Diagnosis of COVID-19 Images Using Optimal CNN Hyperparameters". MDPI Diagnostics (2023), 13, 76. https://doi.org/10.3390/diagnostics13010076

23. S. Hashima, M. M. Fouda, K. Hatano et al. "Dual objective bandit for best channel selection in hybrid band wireless systems". Journal of Ambient Intelligence Human Computing (2022). https://doi.org/10.1007/s12652-022-04475-8

24. E.M. Mohamed, M. Alnakhli, S. Hashima, and M. Abdel-Nasser. (2023). "Distribution of Multi MmWave UAV Mounted RIS Using Budget Constraint Multi-Player MAB" Electronics 12, no. 1: 12. https://doi.org/10.3390/electronics12010012

25. A. O. Hashesh, S. Hashima, R. M. Zaki, M. M. Fouda, K. Hatano and A. S. T. Eldien, "AI-Enabled UAV Communications: Challenges and Future Directions," IEEE Access, vol. 10, pp. 92048-92066, 2022, doi: 10.1109/ACCESS.2022.3202956.

26. A. Said, S. Hashima, M. M. Fouda and M. H. Saad, "Deep Learning-Based Fault Classification and Location for Underground Power Cable of Nuclear Facilities," IEEE Access, vol. 10, pp. 70126-70142, 2022, doi: 10.1109/ACCESS.2022.3187026.

27. S. Hashima, K. Hatano, M.M. Fouda, Z.M. Fadlullah, E.M. Mohamed, "Cost-Aware Bandits for Efficient Channel Selection in Hybrid Band Networks". Electronics 2022, 11, 1782. https://doi.org/10.3390/electronics11111782

28. M. M. Fouda, S. Hashima, S. Sakib, Z. M. Fadlullah, K. Hatano and X. Shen, "Optimal Channel Selection in Hybrid RF/VLC Networks: A Multi-Armed Bandit Approach,"  IEEE Transactions on Vehicular Technology, vol. 71, no. 6, pp. 6853-6858, June 2022, doi: 10.1109/TVT.2022.3163078.

29. E. M. Mohamed, S. Hashima, and K. Hatano, “Energy Aware Multi-Armed Bandit for Millimeter Wave Based UAV Mounted RIS Networks,” IEEE Wireless Communications Letters, vol. 11, no. 6, pp. 1293-1297, 2022.

30. H. Kasban, S. Hashima, S. Nassar, E.M. Mohamed, M.A.M. El-Bendary, Performance enhancing of MIMO-OFDM system utilizing different interleaving techniques with rate-less fountain raptor code. IET Commun.  1– 13 (2022). https://doi.org/10.1049/cmu2.12503

31. E. M. Mohamed, S Hashima, N. Anjum, K. Hatano, W. E. Shafai, and B. M. Elhlawany, “Reconfigurable Intelligent Surface‐aided Millimeter Wave Communications Utilizing Two‐Phase Minimax Optimal Stochastic Strategy Bandit,” IET Communications, pp. 1-8, 2022. Available online: https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/cmu2.12474

32. E. M. Mohamed, S. Hashima, K. Hatano, and M. M. Fouda, “Cost-Effective MAB Approaches for Reconfigurable Intelligent Surface Aided Millimeter Wave Relaying,” IEEE ACCESS, vol. 10, pp. 81642-81653, 2022.

33. E. M. Mohamed, S. Hashima, K. Hatano, and S. A. Aldossari,”Two-Stage Multiarmed Bandit for Reconfigurable Intelligent Surface Aided Millimeter Wave Communications” Sensors, 22, 2179, 2022. https://doi.org/10.3390/s22062179

34. S. Hashima, K. Hatano, H. Kasban, and E. M. Mohamed, “Wi-Fi Assisted Contextual Multi-Armed Bandit for Neighbor Discovery and Selection in Millimeter Wave Device to Device Communications,” Sensors, vol. 21, no. 8, pp. 2835, 2021.

35. S. Hashima, B. M. Elhalwany, K. Hatano, K. Wu, E. M. Mohamed, “Leveraging Machine-Learning for D2D Communications in 5G/Beyond 5G Networks” Electronics, vol. 10, no. 2, pp. 169, 2021.

36. E. M. Mohamed, S. Hashima, K. Hatano, S. Alhajaj, M. Zareei, and M. Rihan, “Two-Hop Relay Probing in WiGig Device-to-Device Networks Using Sleeping Contextual Bandits” IEEE wireless Communications Letters, vol. 10, no.7, pp. 1581 – 1585, 2021.

37. B. M. Elhalwany, S. Hashima, K. Hatano, K. Wu, and E. M. Mohamed, “Leveraging Machine-Learning for Millimeter Wave Beamforming in Beyond 5G Networks” IEEE Systems Journal, vol. 16, no. 2, pp. 1739 – 1750, 2021.

38. E. M. Mohamed, S. Hashima, K. Hatano, M. Fouda, and Z. Fadlullah, “Sleeping Contextual/Non-Contextual Thompson Sampling MAB for mmWave D2D Two-Hop Relay Probing,” IEEE Transaction on Vehicular Technology, vol. 70, no. 11, pp. 12101 - 12112, 2021.

39. S. Hashima, I.I. Mahmoud, Efficient Wireless Sensor Network for Radiation Detection in Nuclear Sites, International Journal of Electronics and Telecommunications V.67, pp.175-180, 2021.

40. S. Hashima, K. Hatano, E. Takimoto, and E. M. Mohamed, “Neighbor Discovery and Selection in Millimeter Wave D2D Networks Using Stochastic MAB,” IEEE Communications Letters, vol. 24, no. 8, pp. 1840 – 1844, 2020.

41. E. M. Mohamed, S.Hashima, K. Hatano, H. Kasban, and M. Rihan, “Millimeter-Wave Concurrent Beamforming: A Multi-Player Multi-Armed Bandit Approach,” CMC Computers, Materials and Continua, vol. 65, no. 3, pp. 1987-2007, 2020.

42. E.M. Mohamed, S. Hashima, A. Aldosary, K. Hatano, and MA Abdelghany, “Gateway selection in millimeter wave UAV wireless networks using multi-player multi-armed bandit,” Sensors, vol. 20, no. 14, 3947, 2020.

43. S. Hashima, and O. Muta. Fast matrix inversion methods based on Chebyshev and Newton iterations for zero forcing precoding in massive MIMO systems. EURASIP Journal on Wireless Communications and Networking, 2022(1), 1-12. https://doi.org/10.1186/s13638-019-1631-x

44. Imbaby I. Mahmoud, Osama H. Elgazzar, Sherief Hashima and Hussein A. Konber. “Analysis and comparison of different cooperative cellular networks.” International Journal of Communication Systems Vol. 33, 2020.

45. H. Kasban, S. Hashima, “Adaptive Radiographic Image Compression Technique using Hierarchical Vector Quantization and Huffman Encoding”. J Ambient Intell Human Comput  Vol.10, pp. 2855–2867 (2019). https://doi.org/10.1007/s12652-018-1016-8

46. Imbaby I. Mahmoud, Osama H. Elgazzar, Sherief Hashima, H.A. Konber, Analysis and performance evaluation of Relay Assisted OFDMA cellular systems with different Beamforming techniques, Elsevier Physical Communication, V.31, 2018.

47. Imbaby Mahmoud, Osama Elgzar, Sherief Hashima, and H. A. Konber, “Performance Evaluation and Analysis of relay Assisted OFDMA cellular systems with Different Beamforming Techniques”, Arabian Journal for science and Engineering, Springer, April 2018.

48. Osama H. Elgazzar, Imbaby I. Mahmoud, Nikos E. Mastorakis, Sherief Hashima, and H. A. Konber," Analytical Performance Evaluation of Relay Assisted OFDMA Cellular Systems with Various Frequency Reuse Schemes Under Different Propagation Impacts", International Journal of circuits, Systems and signal processing, Vol. 12, 2018.

49. Manar Ouda, Mohamed S. El_Tokhy, Mohamed Amal-Eldin, Sherief Hashima, Nesreen. Ziedan, and Imbaby Mahmoud,”Hardware Implementation for pileup correction algorithms in gamma ray spectroscopy”, International Journal of computer applications, IJICA, October, 2017.

50. Imbaby Mahmoud, Sherief Hashima, and Atef A. Elazm,” Hardware Design of Hexagonal Algorithm”, Journal of Menoufia for Electronic Engineering, July 2010. Doi: 10.21608/mjeer.2010.66515

51. Atef A. Elazm, Imbaby Mahmoud, and Sherief Hashima, Group of Hexagonal Search Patterns for Motion Estimation and Object Tracking, Journal of Nuclear Sciences and Applications, 2009.

International  Conference Publications

1. X. Jiang, S. Hashima, K. Hatano, and E. Takimoto, "Multi-thresholding Good Arm Identification with Bandit Feedback", The 17th Asian Conference on Machine Learning (ACML) Taipe Taiwan 2025.

2.  X. Jiang, S. Hashima, K. Hatano, and E. Takimoto, "Efficient Task Offloading via Semi-Matching for Energy Harvesting D2D Communications", IEEE Globecom 2025 Taipe Taiwan.

3. I.Batool; M.M Fouda; M. I. Ibrahem; M. Ismail; S.Hashima, Z.Md Fadlullah, "PFANS: an Intelligent 6G Framework for Dynamic Autonomous Vehicle Learning", 12th International Conference on Wireless Networks and Mobile Communications (WINCOM), Riyadh, Saudi Arabia November 25-27, 2025 (Best paper award).

4. M. J. Akhtar, R. Jain, I.Batool; M. M Fouda; M. I. Ibrahem; S.Hashima, Z.Md Fadlullah, "Combating Neural Network Adversaries in Autonomous Vehicles: a 6G-Ready Defense Framework", 12th International Conference on Wireless Networks and Mobile Communications (WINCOM), Riyadh, Saudi Arabia November 25-27, 2025.

5. S. Hashima, E.M.Mohamed, and M.H. Saad "Dual Objective MAB Scheme for UAV-Mounted IRS in mmWave Communications", 2025 IEEE PIMRC Istanbul, Turkey.

6. S. Hashima, Z. Li, K. Hatano and K. Sakaguchi, "Revolutionizing Over-the-Air Updates: Practical Dual-band V2X Measurements," 2024 IEEE 100th Vehicular Technology Conference (VTC2024-Fall), Washington, DC, USA, 2024, pp. 1-5, doi: 10.1109/VTC2024-Fall63153.2024.10757650. 

7. M. S. Elbakry, A. M. Mahmoud, S. Hashima, B. M. ElHalawany, "Autonomous Navigation for Mobile Robots in Dynamic Environments: A Comprehensive Study Using Deep Learning Algorithms " 2024 IEEE JAC-ECC Conference Alexandria 2024.

8. M.S. Elbakry, S.Hashima and B. M. El Halawany, "Symbol time compression for OFDM spectral efficiency in visible light communication", The 17th International Conference on Computer and Electrical Engineering 28-30 June 2024 - Shenzhen, China (Best paper award).

9.  R. Hosny, S. Hashima, K. Hatano, R. M. Mounir, and B.M.Elhalawany, "UAV trajectory planning in NOMA-aided UAV-mounted RIS networks: A budgeted Multi-armed bandit approach The 17th International Conference on Computer and Electrical Engineering 28-30 June 2024  Shenzhen, China.

10. H. Rizk, S.Hashima, “RISense: 6G-Enhanced Human Activity Recognition System with RIS and Deep LDA” IEEE Conference on Mobile Data Management, 24-27 June, Brussels, Belgium.

11.  S.Hashima, H.Rizk, H. Yamaguchi, “The future of B5G sensing: Transforming Activity Recognition with Reconfigurable intelligent surfaces”  IEEE Activity and Behavior Computing (ABC 24), Kitakyushu 28-31 May 2024.

12. X. Jiang, S. Hashima, K. Hatano, and E. Takimoto, “Opportunistic Downlink User Connectivity in NOMA Enhanced NB-IoT Systems, A Semi-matching Approach”, IEEE Wireless Communications and Networking Conference (WCNC), Dubai, April 2024.

13. S. Hashima, Z.Md Fadullalh, M. Fouda, K. Hatano, E. Takimoto, and M. Guizani, A Dual-Objective Bandit-Based Opportunistic Band Selection Strategy for Hybrid-Band V2X Metaverse Content Update, IEEE Globecom 2023 Kuala Lumpur, Malaysia.

14. R.Hosny, S. Hashima, et al , Budgeted Thompson Sampling for Trajectory Planning in UAV-Enhanced NOMA Emergency Networks, International conference on internet of things  and intelligence system (IOTais), Bali Indonesia.

15. S. Hashima, M. H. Saad, K. Hatano, and H. Rizk”Vehicle Classification in Intelligent Transportation Systems Using Deep Learning and Seismic Data” IEEE Intelligence and security informatics (ISI), North Carolina, USA 2023.

16. S. Hashima, E.M. Mohamed, K. Hatano, E.Takimoto, M. Fouda, and Z.Md Fadllulah, “On Enhancing WiGig Communications With A UAV-Mounted RIS System: A Contextual Multi-Armed Bandit Approach”  IEEE PIMRC, Toronto Canada 2023.

17. S. Hashima, M. Fouda, K. Hatano, and E.Takimoto, “Multi-armed Bandit-Aided Near-Optimal Over-The-Air Updates in Multi-Band V2X Systems”,  IEEE ICCCI Fujisawa Japan 2023. (Best paper award)

18. S. Hashima, M. Fouda, K. Hatano, and E.Takimoto, “Advanced Learning Schemes for Metaverse Applications in B5G/6G Networks” IEEE Metacom Kyoto, Japan 2023.

19. S. Hashima, K. Hatano, E.M. Mohamed, Advanced MAB Schemes for WiGig-Aided Aerial Mounted RIS Wireless Networks, IEEE consumer communications and networking conference LasVegas NV, USA, January 2023

20. A. Gendia, O. Muta, S. Hashima, and K. Hatano, UAV Positioning with Joint NOMA Power Allocation and Receiver Node Activation, IEEE PIMRC , virtual, 2022.

21. S. Hashima, K. Hatano, E.M. Mohamed, Comparison of Energy Aware and Cost subsidy Multiarmed bandit schemes for supreme channel election in Hybrid Band Systems, JAC-ECC, Alexandria, Egypt, 2022.

22. S. Hashima, M. M. Fouda, Z. M. Fadlullah, E. M. Mohamed and K. Hatano, "Improved UCB-based Energy-Efficient Channel Selection in Hybrid-Band Wireless Communication," 2021 IEEE Global Communications Conference (GLOBECOM), 2021, pp. 1-6, doi: 10.1109/GLOBECOM46510.2021.9685996.

23. Sherief Hashima, Ehab Mahmoud, Kohei Hatano, and Eiji Takimoto, "WiGig Wireless Sensor Selection Using Sophisticated Multi Armed Bandit Schemes", IEEE ICMU 2021, TOKYO, Japan

24. S. Hashima, K. Hatano, H. Kasban, M. Rihan, and E. M. Mahmoud, “Multiagent Multi-Armed Bandit Techniques for Millimeter Wave Concurrent Beamforming” in Proc. JAC-ECC, 2020.

25. S. Hashima, K. Hatano, E. Takimoto, E. M. Mohamed, “Minimax Optimal Stochastic Strategy (MOSS) for Neighbor Discovery and Selection in Millimeter Wave D2D Networks” in Proc. WPMC2020, 2020.

26. S. Hashima, K. Hatano, and E. M. Mohamed, “Multiagent Multi-Armed Bandit Schemes for Gateway Selection in UAV Networks” in IEEE Globecom Workshops, 2020.

27. Imbaby I. Mahmoud , Osama H. Elgazzar , Sherief Hashima and H. A. Konber,” Performance Analysis and Comparison of Relay-Aided Cellular Networks under Various Propagation Conditions”, 35th NRSC, March 2018.

28. Manar Ouda, Mohamed S. El_Tokhy, Mohamed Amal-Eldin, Sherief Hashima, Nesreen Ziedan, and Imbaby I. Mahmoud,”Development of Pileup Recovery Algorithms by Peak Detection Method of Digital Gamma Ray Spectroscopy”, 34th NATIONAL RADIO SCIENCE CONFERENCE (NRSC 2017), March 13‐16, Alexandria, Egypt, 2017.

29. Osama Elgzzar, Imbaby Mahmoud, Sherief Hashima, and Hussien. Konber, "Analysis of Downlink sectored Frequency Reuse cellular systems combined with different beamforming techniques," 11th International Conference on Computer Engineering & Systems (ICCES), pp. 401-406, Cairo, 2016.

30. Imbaby. Mahmoud, Osama. Elgzzar, Sherief Hashima and Hussien. Konber, "An accurate model of worst-case signal to interference ratio for frequency reuse cellular systems," 1st International Conference on Computer Engineering & Systems (ICCES), pp. 393-400, Cairo, 2016

31. Sherief Hashima and I. Mahmoud, Interference Management of Wireless Networks in a Nuclear Facility”, International Conference on Computer Security in a Nuclear World, IAEA Head quarter, Vienna, Austria, 1-5 June, 2015.

32. Sherief Hashima, Osamu Muta, Masoud Alghoniemy, Hossam Shalaby, Hiroshi Furukawa, Said Elnoubi, and Imbaby Mahmoud”, Area Spectral Efficiency Performance Comparison of Downlink Fractional Frequency Reuse Schemes for MIMO Heterogeneous Networks”, ISEEE ,Sapparo city, Hokkaido, Japan, 24-28 April, 2014.

33. Sherief Hashima, Osamu Muta, Said Elnoubi, Masoud Alghoniemy, Hossam Shalaby, Hiroshi Furukawa , and Imbaby Mahmoud, “Analysis and Comparison of Fractional Frequency Reuse Schemes Based on Worst Case Signal to Interference Power Ratio in OFDMA Uplink”, IEEE WTS 2014, Washington D.C, USA,9 -11 April, 2014.

34. Sherief Hashima, Hossam shalaby, Said Elnoubi, Masoud Alghoniemy, Osamu Muta, and Hiroshi Furukawa,” Performance Analysis of Fractional Frequency Reuse Based on Worst Case Signal to Interference Ratio in OFDMA Downlink Systems”, 24th Annual IEEE International symposium on personal indoor and mobile radio communications (PIMRC’13 ), London, UK, 8-11 September 2013.

35. Sherief Hashima, Said Elnoubi, Masoud Alghoniemy, Hossam Shalaby, Osamu Muta, and Hiroshi Furukawa,” Performance Analysis of Uplink Fractional Frequency Reuse Using Worst Case Signal to Interference Ratio”, IEEE Science and Information Conference (SAI), London, UK, 8-9 October 2013.

36. Sherief Hashima, Said Elnoubi, Masoud Alghoniemy, Hossam Shalaby, Osamu Muta, and Imbaby Mahmoud,” Analysis of Frequency Reuse Cellular systems Using worst Case Signal to Interference Ratio ”, IEEE Contel2013,Croatia, 26-28 June 2013.

37. Imbaby Mahmoud, Sherief Hashima, and Atef. Elazm, "Proposed One Point Pentagon Inner Search Fast Block Matching Algorithm", 26th International Radio Science Conference (NRSC), Cairo, EGYPT, 17-19 March, 2009.

38. Sherief Hashima, Imbaby Mahmoud, and Atef A. Elazm, “Experimental comparison among Fast Block Matching Algorithms (FBMAs) for motion estimation and object tracking”, 28th National Radio Science Conference (NRSC), Cairo, Egypt, 2011

39. Sherief Hashima, Imbaby Mahmoud and Atef A. Elazm, "Hardware Implementation of Diamond Search Algorithm for Motion Estimation and Object Tracking", 9th  Conference of NUPAC09, SharmEl Sheikh, Egypt, 11-14 November 2009.

40. Imbaby Mahmoud, Sherief Hashima, and Atef.Abo Elazm, "Role of Region of Interest in Block Matching Algorithms for Object Tracking", STCEX 5th Conference, Riad, K.S.A 2008.

Invited Talks and Presentations

[1]   AI-Driven RIS: Unleashing the Full Potential of 6G Networks , Sydney - RIKEN AIP Joint AI Workshop, July 2025.

[2] AI-Enhanced RIS Empowering 6G networks, S4IOT 24, Kuwait, May 2024.

[2]   Online Learning Algorithms for Wireless RIS Relay Communications”, 7th Workshop ZIB-IMI-ISM-NUS-RIKEN-MODAL, Berlin, Germany, September 2023.

[3]   Artificial Intelligence-aided Reconfigurable Intelligent Surface-aided 6G Networks” IEEE JAC-ECC 2023 Alexandria, Egypt.

[4]   Online Learning Based Solutions for B5G/6G Communication Systems” IBISML, IEICE Japan 2022.

[5]   Bandit Formulations for UAV mounted RIS Networks, MBZUAI & RIKEN-AIP Joint Workshop April 2023.

Posters

[1] S. Kajihara, S. Hashima, K. Hatano, E. Takimoto, "Online Path Optimization in Cascaded RIS Networks via Mixed Integer Programming", The 15th International Conference on Mobile Computing and Ubiquitous Networking, September 10-12, 2025, Busan, Korea

[2]   S. Hashima, “Bandit Formulations for Hybrid Band Wireless Networks”, International Workshop on Complex Systems Science and Health Neuroscience, Torun, Poland, September 2023.

[3]   S. Hashima, “Efficient Deep Learning Aided Vehicle Classification Schemes Using Seismic Data”, RIKEN-AIP workshops, Deep Learning: Theory, Applications, and Implications, Tokyo, 18-20 March 2024.

Special Issues 

• Guest Editor of Special Issue " Innovative AI Approaches for Emerging 6G Wireless and Computing System"

https://www.mdpi.com/journal/electronics/special_issues/P2YNG71WGA

• Guest Editor of Special Issue "Online Learning Aided Solutions for 6G Wireless Networks"

https://www.mdpi.com/journal/electronics/special_issues/6G_Wireless_Networks

• Guest Editor of Special Issue "AI-Powered Energy-Efficient UAV Communications"

https://www.mdpi.com/journal/drones/special_issues/2YS4U0GM1M

• Guest Editor of Special Issue "AI-Empowered Lung Disease Classification and Detection: Advances and Challenges"

https://www.mdpi.com/journal/healthcare/special_issues/9X38NA8RCL