Dr. Obinna Samuel Oguejiofor
Dr. Obinna Samuel Oguejiofor is a READER in ELECTRONICS AND COMPUTER ENGINEERING Department, Faculty Of Engineering in Nnamdi Azikiwe University
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Staff Profile
Engr. Dr. Obinna
S. Oguejiofor is an associate professor in the department of Electronic and
Computer Engineering, Nnamdi Azikiwe University Awka, Nigeria. He specializes
in wireless communication and signal processing. His other research interest
includes heterogeneous networks, multi-antenna communications, radio resource
allocation, spectral and energy-efficient communication, and 5G systems, etc.
He received his B.Eng degree in Electrical/Electronics and Telecommunication
Engineering and M.Eng degree in Communication Engineering from Nnamdi Azikiwe University,
Awka, Nigeria. He also received his PhD degree in Electronic and Electrical
Engineering from the University of Leeds, Leeds, United Kingdom. Dr. O.S
Oguejiofor has authored many journal articles and has presented many
engineering conference papers. Most of them have been published in high
quartile journals and major IEEE conference proceedings. He is a member of the
Institute of Electrical and Electronics Engineers (IEEE) and the council for
the regulation of engineering in Nigeria (COREN).
Personal Information
Email: | |
Phone: | |
Address: | Electronics And Computer Engineering, Faculty Of Engineering, Nnamdi Azikiwe University, Awka. |
Faculty/Unit: | FACULTY OF ENGINEERING |
Department/Sub-Unit: | ELECTRONICS AND COMPUTER ENGINEERING |
Social Profiles
Academic Qualifications
| Degrees / Basic Certificates | |
|---|---|
| 1 | University Of Leeds, United Kingdom. (Doctor of Philosophy, August, 2017) June, 2014 to June, 2017 PhD Electronic And Electrical Engineering |
| 2 | Nnamdi Azikiwe University Awka. (Master Degree, February, 2013) January, 2011 to February, 2013 M.Eng Electronic And Computer Engineering |
| 3 | Nnamdi Azikiwe University Awka. (Bachelor Degree, July, 2007) September, 2002 to July, 2007 B.Eng. Electrical/Electronics And Computer Engineering |
| 4 | St Charles Special Science School Onitsha. (NECO, July, 2000) September, 1997 to July, 2000 |
| 5 | Central School Nri. (FSLC, May, 1996) September, 1988 to July, 1994 |
| Other / Relevant Certificates | |
| 1 | Huawei Talent Online (March, 2022) February, 2022 to March, 2022 5G Network And Applications |
| 2 | Huawei Talent Online (March, 2022) February, 2022 to March, 2022 5G |
Relevant/Working Experience
| 1 | Coordinating Head, Telecommunication Engineering Department, Nnamdi Azikiwe University Awka July, 2024 to Present |
| 2 | Postgraduate Coordinator, Department of Electronic &Computer Engineering, Nnamdi Azikiwe University Awka March, 2024 to Present |
| 3 | Reader, Nnamdi Azikiwe University Awka October, 2023 to Present |
| 4 | ECE PG Secretary, Nnamdi Azikiwe University Awka June, 2021 to February, 2024 |
| 5 | ECE Departmental Student's Academic Advisor, Nnamdi Azikiwe University Awka June, 2021 to Present |
| 6 | Faculty of Engineering Assistant Career Officer, Nnamdi Azikiwe University Awka June, 2021 to Present |
| 7 | Senior Lecturer, Nnamdi Azikiwe University Awka October, 2020 to September, 2023 |
| 8 | ICT Coordinator, Nnamdi Azikiwe University Awka April, 2019 to November, 2021 |
| 9 | Lecturer I, Nnamdi Azikiwe University Awka October, 2018 to September, 2020 |
| 10 | Acting PG Coordinator, Nnamdi Azikiwe University Awka August, 2018 to March, 2019 |
| 11 | Lecturer II, Nnamdi Azikiwe University Awka February, 2014 to September, 2018 |
| 12 | ECE Departmental Examination Officer, Nnamdi Azikiwe University Awka February, 2013 to September, 2014 |
| 13 | Assistant Lecturer, Nnamdi Azikiwe University Awka February, 2013 to February, 2014 |
| 14 | Graduate Assistant, Nnamdi Azikiwe University Awka June, 2010 to February, 2013 |
| 15 | Mathematics Teacher, Spring Secondary School Kano (NYSC) April, 2008 to February, 2009 |
| 16 | Trainee Engineer, Reliance Telecommunication Limited (SIWES) November, 2005 to April, 2006 |
Creative Output
| Books | |
|---|---|
| 1 | O.S Oguejiofor, Naveed Nawaz, Li. X. Zhang. (2021, November) Heterogeneous Networks: Optimization, Resource Allocation and Interference Management Techniques University Press Plc |
| Journal Articles | |
| 1 | Ogene Somto E, Obinna S. Oguejiofor. (2025, February), "User centric based clustering for mitigating intercell interference for 5G Network using Machine learning approach", Journal of inventive Engineering and Technology (JIET), Vol. 7, (Issue 1), pp 1 - 11 |
| 2 | Oguejiofor Obinna S., Okechukwu Godson N., Chidumebi Somtochukwu O.. (2024, May), "The Design and Construction of a Smart Waste Bin Management System", Journal of Inventive Engineering and Technology, Vol. 5, (Issue 3), pp 1-15 |
| 3 | Obinna S. Oguejiofor, Azubike N. Aniedu, Godson N. Okechukwu and Vincent C. Onuzulike. (2024, December), "Examination Malpractice Panacea: A Deep Learning Approach Using MobileNetV2", Journal of inventive Engineering and Technology (JIET), Vol. 6, (Issue 3), pp 22-29 |
| 4 | C.A. Nwonye, K.A. Akpado, T.L. Alumona, O.S. Oguejiofor, D.O. Amaefule. (2024, September), "Monitoring of Migration of Harmful Sparrow Birds in a Rice Farm Using Conventional Neural Network (CNN) Model", Unizik Journal of Engineering and Applied Science, Vol. 3, (Issue 4), pp 1144-1162 |
| 5 | Chiamaka B. Nwabanne, Obinna S. Oguejiofor, Scholastica U. Nnebe. (2023, March), "Improving the spectral efficiency of an uplink 5G massive MIMO system using convex optimization approach", Unizik Journal of Engineering and Applied Sciences, Vol. 1, (Issue 1), pp 31 - 40 |
| 6 | Ezeh Ikechukwu H, Idigo Victor E, Oguejiofor Obinna S. (2023, March), "Analysis of Power Consumption Rates of Clustered Devices in Device to Device (D2D) Communications", Unizik Journal of Engineering and Applied Sciences, Vol. 1, (Issue 1), pp 99 -110 |
| 7 | Chuma A. okoli, Victor E. Idigo, Obinna S. Oguejiofor, Ifeanyi C. Ezeugbor. (2023, July), "Performance Improvement of Handover Scheme for an Established Long Term Evolution (LTE) Network", Electroscope, (Issue 11), pp 48-56 |
| 8 | O.S Oguejiofor, P.C Obioma, G N Okechukwu. (2023, September), "User-Centric Based Clustering Scheme and Resource Allocation for Inter-Cell Interference Mitigation in 5G Heterogeneous Networks", Journal of Inventive Engineering and Technology (JIET), Vol. 4, (Issue 1), pp 1 - 10 |
| 9 | Prince. N Nwankwo, K. A. Akpado, A. N. Isizoh, Theophilus L. Alumona, OS Oguejiofor. (2021, October), "Optimization of Solar Panel Tilt and Azimuth Angle for Maximum Solar Irradiation and Minimum Loss for Rural Electrification", International Journal for Research in Applied Science and Engineering Technology, Vol. 9, (Issue 10), pp 1852-1868 |
| 10 | Oguejiofor O.S, Isizoh A.N, Eze C.E. (2021, March), "Roles of Information and Communication Technology (ICT) In Nigeria’s Industrial Development", International Research Journal of Innovations in Engineering and Technology (IRIJIET), Vol. 5, (Issue 3), pp 53-56 |
| 11 | Simon E. Uguru, Victor E. Idigo, Obinna S. Oguejiofor, Naveed Nawaz. (2021, December), "Enhanced Interference Management Technique for Multi-Cell Multi-Antenna System", International Journal of Electronics and Communication, Engineering, Vol. 15, (Issue 11), pp 377 - 381 |
| 12 | O.S Oguejiofor, Li. X. Zhang, Naveed Nawaz. (2018, August), "UE-Centric Clustering And Resource Allocation For Practical Two-Tier Heterogeneous Cellular Networks", ,” IET Communication, Vol. 12, (Issue 18), pp 2384-2392 |
| 13 | O.S Oguejiofor, A Abe, A N Aniedu, G N Okechukwu. (2018, June), "Distributed Resource Allocation For Two-tier Heterogeneous Cellular Networks", IUP journal of Telecommunications (IJT), Vol. 10, (Issue 2), pp 7-33 |
| 14 | O.S Oguejiofor, A Abe, A N Aniedu, G N Okechukwu. (2018, December), "Interference Issues And Management Techniques In Heterogeneous Cellular Networks: A Review", IUP journal of Telecommunications (IJT), Vol. 10, (Issue 4), pp 7-28 |
| 15 | O.S. Oguejiofor, G.C. Nwalozie, E. Alagbu, A.O. Okafor. (2014, July), "Robust Transmit Beamforming Based On Probability Specification In Cellular Cognitive Radio Networks", International Journal of Computer Science and Telecommunications (IJCST), Vol. 5, (Issue 10), pp 9-14 |
| 16 | V.E. Idigo, C.C. Ohaneme, O.S. Oguejiofor,. (2014, June), "Performance Evaluation And Optimization Of CDMA 2000 1X Mobile Cellular Radio Network", International Journal of Emerging Technology and Advanced Engineering (IJETAE), Vol. 4, (Issue 4), pp 328-339 |
| 17 | I.A. Obidike, O.S. Oguejiofor, H.C. Ejiofor, G.N. Okechukwu,. (2013, March), "Performance Evaluation Of Adaptive Algorithm For Hearing Aid Implementation", International Journal of Computer Technology and Electronics Engineering (IJCTEE), Vol. 3, (Issue 5), pp 23-30 |
| 18 | O.S Oguejiofor, Aniedu A.N, Ejiofor H.C, Okolibe A.U. (2013, January), "Trilateration Based Localization Algorithm For Wireless Sensor Network", International Journal of Innovative Science and Modern Engineering (IJISME), Vol. 1, (Issue 10), pp 21-27 |
| 19 | O.S Oguejiofor, Okorogu V.N., Adewale Abe, Osuesu B.O. (2013, June), "Outdoor Localization System Using RSSI Measurement Of Wireless Sensor Networks", International Journal of Innovative Technology and Exploring Engineering (IJITEE), Vol. 2, (Issue 2), pp 1-6 |
| 20 | A.C.O Azubogu, V.E. Idigo, S.U. Nnebe, O.S Oguejiofor. (2013, September), "Wireless Sensor Networks For Long Distance Pipeline Monitoring", International Journal of Electronics and Communication, Engineering, Vol. 7, (Issue 3), pp 285-289 |
| 21 | K.A Akpado, O.S Oguejiofor. (2013, October), "Path Loss Prediction For A Typical Mobile Communication System In Nigeria Using Empirical Propagation Models", International journal of computer networks and wireless communications (IJCNWC), Vol. 3, (Issue 2), pp 207-211 |
| 22 | K.A Akpado, O.S Oguejiofor. (2013, November), "Investigating The Impacts Of Base Station Antenna Height, Tilt And Transmitter Power On Network Coverage", International Journal of Engineering Science and Invention (IJESI), Vol. 2, (Issue 7), pp 32-38 |
| 23 | O.S Oguejiofor, Aniedu A. N, Ejiofor H. C, Okechukwu G. N. (2013, July), "Indoor Measurement And Propagation Prediction Of WLAN At 2.4GHz", International Journal of Engineering and Technology (IJERT), Vol. 2, (Issue 7), pp 798-802 |
| 24 | Oguejiofor O.S, Oleka C.V, Ejiofor H.C, Okumbor N.A. (2013, May), "Mobile Radio Link Design Using Path Loss Model", International journal of Engineering and Advanced Technology (IJEAT), Vol. 2, (Issue 6), pp 421-424 |
| 25 | K.A Akpado, O.S Oguejiofor. (2013, March), "Outdoor Propagation Prediction In Wireless Local Area Network (WLAN)", International journal of Engineering Science and Innovative Technology (IJESIT), Vol. 2, (Issue 2), pp 269-274 |
| 26 | G.C. Nwalozie, K.M. Nwokedi, O.S. Oguejiofor,. (2013, February), "A Modified Adaptive Control (MAPC) Algorithm For CDMA Network", IUP Journal of Telecommunications (IJT), Vol. 5, (Issue 2), pp 7-24 |
| 27 | V.E. Idigo, A.C.O. Azubogu, C.O. Ohaneme, O.S. Oguejiofor. (2013, March), "Evaluation Of Beam Forming Algorithm For Smart Antenna System,", IUP journal of Telecommunications (IJT), Vol. 5, (Issue 1), pp 29-45 |
| 28 | A.C.O Azubogu, V.E. Idigo, G.C. Nwalozie, O.S Oguejiofor. (2012, January), "Simulation Evaluation Of Least Mean Square (Lms) Adaptive Beamforming Algorithm For Smart Antennas", IUP Journal of Science and Technology (IJST), Vol. 4, (Issue 1), pp 1-14 |
| 29 | O.S Oguejiofor, Okorogu V.N, Nwalozie G.C, Adewale Abe. (2012, February), "Indoor Propagation Prediction In Wireless Local Area Network", International journal of Engineering and Innovative Technology (IJEIT), Vol. 2, (Issue 4), pp 121-124 |
| 30 | C.O. Ohaneme, A.C.O. Azubogu, O.S. Oguejiofor. (2012, January), "Analysis Of Ambient Noise Level Its Impact On The Capacity And Coverage Of CDMA System", International Journal of Innovative Technology and Exploring Engineering (IJITEE), Vol. 1, (Issue 4), pp 72-78 |
| 31 | Akpado K.A, Idigo V.E , Oguejiofor O.S and Adewale Abe2. (2011, May), "Analysis and Enhancement of a DSR Protocol with Self Healing Optimizing Technique", International Journal of Advances in Science and Technology,, Vol. 3, (Issue 4), pp 165-172 |
| 32 | V.E. Idigo, O.S. Oguejiofor. (2011, June), "Modelling And Empirical Analysis Of IEEE 802.11b Distributed Coordinated Function (DCF) In Multi-Rate WLAN", International Journal of computer Theory Engineering (IJCTE), Vol. 3, (Issue 5), pp 656-661 |
| 33 | V.E. Idigo, A.C.O. Azubogu, Obinna Oguejiofor. (2011, July), "Modelling An Enhanced Routing Protocol For Wireless Sensor Networks Using Implicit Clustering Technique", International Journal of Computer Science Issues (IJCSI), Vol. 8, (Issue 3), pp 264-273 |
| 34 | V.E. Idigo, E.N. Ifeagwu, A.C.O Azubogu, K.A Akpado, O.S. Oguejiofor. (2011, February), "Simulation And Evaluation Of A Simple Adaptive Antenna Array For A WCDMA Mobile Communication", International Journal of Advanced Computer Science and Applications (IJACSA), Special Issues on Wireless and Mobile Networks, pp 1-4 |
| Conference Papers | |
| 1 | Obinna S. Oguejiofor, Li Zhang, Godson N. Okechukwu. (2024, July), "Improving the Spectral Efficiency of a Downlink 5G Heterogeneous Massive MIMO System Using Beamforming Technique", |
| 2 | A Mohanad, L Zhang and O Oguejiofor. (2017, August), "Inbound Handover Interference-Based Margin For Load Balancing In Heterogeneous Networks", , pp 1-6 |
| 3 | O Oguejiofor, L Zhang and N Nawaz. (2017, May), "Resource Allocation For Practical Two-Tier Heterogeneous Cellular Networks", , pp 1-6 |
| 4 | O Oguejiofor, L Zhang and A Mohanad. (2017, August), "Decentralized Resource Allocation For Heterogeneous Cellular Networks", , pp 1-6 |
| 5 | O.S Oguejiofor, Li Zhang. (2016, May), "Global Optimization Of Weighted Sum-Rate For Downlink Heterogeneous Cellular Networks", , pp 1-6 |
| 6 | O Oguejiofor, L Zhang. (2016, May), "Heuristic Coordinated Beamforming For Heterogeneous Cellular Network", , pp 1-6 |
Academic Leadership Qualities
| Supervisions | |
|---|---|
| 1 | "Improving the spectral efficiency of a 5G Massive MIMO System Using Beamforming Technique" (2022). Completed Masters project by Chiamaka Blossom Nwabanne |
| 2 | "User Centric Based Clustering Scheme for Inter-cell Interference Mitigation in 5G Networks Using Machine Learning" (2025). Completed Masters project by Ogene Somto Emmanuel (2022366022FA) |
| Grants | |
| 1 | Awardee: "Development of a user-centric based Clustering Scheme and Spatial Resource Allocation for the mitigation of interference in 5G Networks" (April, 2022 to November, 2023). Completed sponsored grant by Nigerian Communication Commission |
| 2 | Awardee: "Development of a book titled : Heterogeneous Networks: Optimization, Resource Allocation and Interference Management Techniques" (June, 2021 to February, 2022). Completed sponsored grant by TETFund |
| 3 | Awardee: "Academic Staff Training and Development" (March, 2014). Completed sponsored grant by TETFund |
| 4 | Awardee: "Design and Development of an Artificial Intelligence (AI) Based Examination Monitoring and Management System" (June, 2024). Ongoing sponsored grant by Tertiary Education Trust Fund |
| Editorships | |
| 1 | Editor, "International Journal of Electronics and Communication Engineering" (September, 2021) |
| Reviewerships | |
| 1 | Reviewer, "Machine Learning: A Panacea for Improving the Energy Efficiency of a 5G Network" (June, 2023) |
| 2 | Reviewer, "Improving Vertical Handoff for 4G Networks using NCC Key Performance Indicators" (June, 2022) |
| 3 | Reviewer, "PLANNING AND SIMULATION OF TVWS NETWORK FOR BROADBAND CONNECTIVITY IN SPARSELY POPULATED ENVIRONMENT" (December, 2019) |
| 4 | Reviewer, "Hierarchical Beamforming For Downlink Cloud Radio Access Network" (August, 2017) |
| 5 | Reviewer, "Interference Patterns Design For Joint User Association And Resource Allocation Optimization In HetNets" (June, 2017) |
| Examinerships | |
| 1 | Examiner, "CBT JAMB Examination" (April, 2019 to April, 2019). Completed External Exam |
| 2 | Examiner, "Masters Final Examination" (October, 2015 to February, 2022). Completed Internal-Internal Exam |
| 3 | Examiner, "Masters External (Final) Examination" (September, 2014 to February, 2022). Completed Internal-External Exam |
| 4 | Examiner, "Masters Final Examination" (October, 2013 to September, 2021). Completed Internal-External Exam |
| 5 | Examiner, "Masters Final Examination" (September, 2011 to October, 2021). Completed Internal-External Exam |
| Contributions to the University/Society | |
| 1 | Ward Collation Officer, "Independent National Electoral Commission" (March, 2023 to March, 2023) |
| 2 | Member/Secretary, "Engineering Committee on Undergraduate Student Matriculation" (June, 2023) |
| 3 | Assistant Faculty Career Officer for Engineering, "Centre for Counseling and Career Development (CCCD) UNIZIK" (June, 2021) |
| 4 | Secretary, "Faculty Of Engineering Committee On Research, Grant And International Collaboration" (July, 2021) |
| 5 | Secretary, "ECE Committee On Curriculum" (June, 2021) |
| 6 | Member, "ECE Committee On Quality Assurance" (June, 2021) |
| 7 | Secretary, "ECE Committee On Research And Innovation" (June, 2021) |
| 8 | Adviser, "Academic Adviser for ECE 300 level undergraduate Students" (June, 2021) |
| 9 | Proctor, "CBT JAMB Examination" (April, 2019) |
| 10 | Departmental ICT Coordinator, "Nnamdi Azikiwe University Awka" (April, 2019 to November, 2021) |
| 11 | Collation Officer for Presidential and National Assembly Election, "Independent National Electoral Commission" (February, 2019) |
| 12 | Collation Officer For State House of Assembly Election, "Independent National Electoral Commission" (March, 2019) |
| 13 | Member, "ECE Alumni Liason Committee" (October, 2018) |
| 14 | Examination Officer, "Nnamdi Azikiwe University Awka" (February, 2013 to September, 2014) |
Membership of Professional/Relevant Bodies
| 1 | Full Member, "WASET International Scientific Committee of Electronics and Communication Engineering" (member since 2021), https://waset.org/committees/electronics-and-communication-engineering |
| 2 | Full Member, "Council for the Regulation of Engineering in Nigeria" - R27,368 (member since 2014), https://portal.coren.gov.ng/Account/Login?ReturnUrl=%2f |
| 3 | Graduate Member, "Institute of Electrical and Electronics Engineers" - 93066105 (member since 2014), https://www.ieee.org/about/ieee-history.html#:~:text=Related%20links-,Meaning%20of%20I%2DE%2DE%2DE,is%20the%20full%20legal%20name. |
| 4 | Full Member, "International Association of Engineers" - 109590 (member since 2012), http://www.iaeng.org/membership.html |
Relevant Events Attended
| Conferences | |
|---|---|
| 1 | "Sustainable Energy and Smart Agriculture for National Development", (Faculty of Engineering), 6th November, 2024 to 7th November, 2024; Nnamdi Aziiwe University Awka |
| 2 | "32nd Engineering Assembly COREN Conference", (COREN), 2nd September, 2024 to 4th September, 2024; Abuja, Nigeria |
| 3 | "10th International Conference on Control Decision and Information Technologies, 01-04 Jul 2024, Valletta, Malta. IEEE", (IEEE), 1st July, 2024 to 4th July, 2024; Valletta, Malta. |
| 4 | "Faculty of Engineering International Conference 2022", (FAculty of Engineering Nnamdi Azikiwe University Awka), 10th February, 2022 to 11th February, 2022; Nnamdi Azikiwe University, Awka |
| 5 | "International Symposium On Wireless Communication Systems (ISWCS)", (IEEE), 14th August, 2017 to 17th August, 2017; Bologna Italy |
| 6 | "23rd European Wireless (EW)", (IEEE), 14th August, 2017 to 15th August, 2017; Dresden, Germany |
| 7 | "International Conference Of Telecommunication", (IEEE), 16th May, 2016 to 19th May, 2016; Thessaloniki Greece |
| 8 | ". IEEE 83rd Vehicular Technology Conference,", (IEEE), 16th May, 2016 to 19th May, 2016; Nanjing, China |
| Workshops | |
| 1 | "2025 Research Methodology Workshop", (Unizik Business School in conjunction with the College of postgraduate studies), 27th February, 2025 to 1st March, 2025; Google Meet |
| 2 | "Coaching And Career Development Skills", (centre for counselling and career development UNIZIK), 18th May, 2021 to 21st May, 2021; Unizik Business School, Awka |
| 3 | "1. 2nd Phase Sensitization Workshop On National ICT Roadmap", (Federal Ministry of Communication, Nigeria), 6th May, 2019 to 6th May, 2019; Awka |