• Muhammad Ali Khan, Rao Naveed Bin Rais, Osman Khalid, and Sanan Ahmad, “Trust-Based Optimized Reporting for Detection and Prevention of Black Hole Attacks in Low-Power and Lossy Green IoT Networks,” Sensors, vol. 24, no. 6. 09 March 2024 (URL:




  • Naseem us Sehar, Osman Khalid, Imran Ali Khan, Faisal Rehman, Muhammad A. B. Fayyaz, Ali R. Ansari & Raheel Nawaz, “Blockchain enabled data security in vehicular networks,” Scientific Reports, volume 13, Article number: 4412, 17 March 2023 (URL:


  • Adeel Ahmed, Khalid Saleem, Osman Khalid, Jiechao Gao, and Umer Rashid, “Trust-aware denoising autoencoder with spatial-temporal activity for cross-domain personalized recommendations,” Neurocomputing, Volume 511, Pages 477-494, 28 October 2022 (
  • Kainat Malik, Faisal Rehman, Tahir Maqsood, Saad Mustafa, Osman Khalid, and Adnan Akhunzada, “Lightweight Internet of Things Botnet Detection Using One-Class Classification,” Sensors, vol. 22, no. 10, pp. 3646, 10 May 2022. (URL:,
  • Y. Ali, O. Khalid, I. A. Khan, S. S. Hussain, F. Rehman, S. Siraj, and R. Nawaz, “A hybrid group-based movie recommendation framework with overlapping memberships,” PLOS ONE, Published: March 31, 2022, (URL:
  • M. M. Yaqoob, W. Khurshid, L. Liu, S. Z. Arif, I. A. Khan, O. Khalid, and R. Nawaz, “Adaptive Multi-Cost Routing Protocol to Enhance Lifetime for Wireless Body Area Network,”  Computers, Materials & Continua, Vol.72, No.1, pp.1089-1103, doi:10.32604/cmc.2022.024798, 2022. (URL: 
  • U. Rashid, A. Javid, A. R. Khan, L. Liu, A. Ahmed, O. Khalid, K. Saleem, S. Meraj, U. Iqbal, and R. Nawaz, “A hybrid mask RCNN-based tool to localize dental cavities from real-time mixed photographic images,” PeerJ Computer Science, February 18, 2022, (



  • M. Junaid, O. Khalid, et al. “Modeling an Optimized Approach for Load balancing in Cloud,” DOI: 10.1109/ACCESS.2020.3024113, IEEE Access, Volume 8, pp. 173208-173226, 14 September 2020 (URL:
  • F. Wahid, M. S. Zia, R. N. B. Rais, M. Aamir, U. M. Butt, M. Ali, A. Ahmed, I. A. Khan, O. Khalid, “An Enhanced Firefly Algorithm Using Pattern Search for Solving Optimization Problems,” IEEE Access, Vol. 8, 148264 – 148288, DOI: 10.1109/ACCESS.2020.3015206, 10 August 2020, (URL: 
  • B. Gul, I. A. Khan, S. Mustafa, O. Khalid, S. S. Hussain, and D. Dancey, “CPU and RAM Energy-Based SLA-Aware Workload Consolidation Techniques for Clouds,” IEEE Access, DOI: 10.1109/ACCESS.2020.2985234, Volume: 8, Issue:1, pp. 62990-63003, 02 April 2020 (Web Link:
  • Waqar Khurshid, Imran A. Khan, Miss L. M. Kiah, Osman Khalid, Sajjad A. Madani, “A dynamic threshold calculation for congestion notification in IEEE 802.1Qbb,” IEEE Communication Letters, DOI: 10.1109/LCOMM.2020.2966198, Volume: 24, Issue: 4, pp: 744-747, 13 January 2020 (Web Link:
  • N. B. Rais and O. Khalid, “Study and analysis of mobility, security, and caching issues in CCN,” International Journal of Electrical and Computer Engineering (IJECE), ISSN: 2088-8708, URL:, Vol. 10, No. 2, pp. 1438-1453, April 2020.


  • F. Rehman, O. Khalid, N. Haq, T. Maqsood, M. Ali, R. W. Ahmad, J. Shuja, S. Sarwar, and S. A. Madani, “A scalable model for real‐time venue recommendations using MapReduce,” Concurrency and Computation-Practice & Experience, First published: 10 December 2019
  • B. Gul, I. A. Khan, S. Mustafa, O. Khalid, A U. R. Khan, “CPU–RAM-based energy-efficient resource allocation in clouds,” The Journal of Supercomputing, vol. 75, pp 7606–7624, DOI:, Published: 19 August 2019
  • R. Irfan, O. Khalid, M. U. S. Khan, F. Rehman, A. U. R. Khan, and R. Nawaz, “SocialRec: A Context-aware Recommendation Framework with Explicit Sentiment Analysis,” IEEE Access, vol. 7, pp. 116295 – 116308,  URL:, Date of Publication: 01 August 2019.
  • L. Wu, L. Nie, S. U. Khan, O. Khalid, and D. Wu, “A V2I Communication Based Pipe Model for Adaptive Urban Traffic Light Scheduling,” Frontiers of Computer Science, Vol. 13, Issue. 5, pp. 929–942, October 2019  
  • F. Qazi, O. Khalid, R. N. B. Rais, I. A. Khan, and A. R. Khan, “Optimal Content Caching in Content-Centric Networks,” Wireless Communications and Mobile Computing, Volume 2019, Article ID 6373960, 15 pages, (URL:, 23 January 2019
  • U. U. Rahman, K. Bilal, A. Erbad, O. Khalid, and S. U. Khan, “Nutshell—Simulation toolkit for Modeling Data Center Networks and Cloud Computing,” IEEE Access, Vol. 7, pages: 19922 – 19942, 31 January 2019. (URL:
  • A. Ghosh, O. Khalid, R. N. B. Rais, A. Rehman, S. U. R. Malik, and I. A. Khan, “Data offloading in IoT environments: modeling, analysis, and verification,” EURASIP Journal on Wireless Communications and Networking, Article Number: 53, DOI: 10.1186/s13638-019-1358-8,  4 March 2019 (URL:


  • H. Qadir, O. Khalid, M. U. S. Khan, A. R. Khan and R. Nawaz, “An Optimal Ride Sharing Recommendation Framework for Carpooling Services,” in IEEE Access, vol 6, no. 1, pp. 62296-62313, 17 October 2018. (URL:
  • T. Qayyum, A. W. Malik, M. A. K. Khattak, O. Khalid, S. U. Khan, “FogNetSim++: A toolkit for modeling and simulation of distributed fog environment,” IEEE Access, vol. 6, Page(s): 63570-63583, DOI: 10.1109/ACCESS.2018.2877696, 23 October 2018 (URL:
  • K. Bilal, O. Khalid, E. Erbad, and S. U. Khan, “Potentials, Trends, and Prospects in Edge Technologies:  Fog, Cloudlets, Mobile Edge, and Micro Data Centers,” Computer Networks, Vol. 130, Pages 94-120, 15 January 2018.


  • R. Irfan, O. Khalid, M. U. S. Khan, C. Chira, R. Ranjan, F. Zhang, S. U. Khan, B. Veeravalli, K. Li, and A. Y. Zomaya, “MobiContext: A Context-aware Cloud-based Recommendation Framework,” IEEE Transactions on Cloud Computing. Volume: 5, Issue: 4, Oct.-Dec. 1 2017
  • F. Rehman, O. Khalid, and S. A. Madani, “A Comparative Study of Location Based Recommendation System,” Knowledge Engineering Review, Vol. 32, e7, 16 January 2017.
  • F. Rehman, O. Khalid, N. Haq, A. Rehman, K. Bilal, and S. Madani, “Diet-Right: A Smart Food Recommendation System,” KSII Transactions on Internet and Information Systems, Vol. 11, No.6, June 30, 2017
  • M. U. S. Khan, O. Khalid, Y. Huang, F. Zhang, R. Ranjan, S. U. Khan, J. Cao, K. Li, B. Veeravalli, and A. Zomaya, “MacroServ: A Route Recommendation Service for Large-Scale Evacuations,” IEEE Transactions on Services Computing.  Volume: 10, Issue: 4, July-Aug. 1 2017
  • O. Khalid, R. N. B. Rais, and S. A. Madani, “Benchmarking and Modeling of Routing Protocols for Delay Tolerant Networks,” Wireless Personal Communications, Volume 94, Issue 3, pp 859–888, June 2017.


  • T. Maqsood, O. Khalid, R. Irfan, S. A. Madani, and S. U. Khan, “Scalability Issues in Online Social Networks,” ACM Computing Surveys. Volume 49 Issue 2, November 2016
  • M. S. Khan, M. I. Khan, S. R. Malik, O. Khalid, M. Azeem, N. Javaid, “MATF: A Multi-attribute Trust Framework for MANETs,” EURASIP Journal on Wireless Communications and Networking, Article Number: 197, DOI: 10.1186/s13638-016-0691-4, Published: August 24, 2016
  • O. Khalid, M. U. S. Khan, Y. Huang, S. U. Khan, and A. Y. Zomaya, “EvacSys: A Cloud-based Service for Emergency Evacuation,” IEEE Cloud Computing, vol. 3, no. 1, pp. 60–68, 26 February 2016.


  • K. Bilal, S. U. R. Malik, O. Khalid, A. Hameed, E. Alvarez, V. Wijaysekara, R. Irfan, S. Shrestha, D. Dwivedy, M. Ali, U. S. Khan, A. Abbas, N. Jalil, and S. U. Khan, “A Taxonomy and Survey on Green Data Center Networks,” Future Generation Computer Systems, vol. 36, pp. 189-208, July 2014.
  • O. Khalid, M. U. S. Khan, S. U. Khan and A. Y. Zomaya, “OmniSuggest: A Ubiquitous Cloud-Based Context-Aware Recommendation System for Mobile Social Networks,” in IEEE Transactions on Services Computing, vol. 7, no. 3, pp. 401-414, July-Sept. 2014. (URL:


  • O. Khalid, S. U. Khan, S. A. Madani, K. Hayat, M. I. Khan, N. Min-Allah, J. Kolodziej, L. Wang, S. Zeadally, and D. Chen, “Comparative Study of Trust and Reputation Systems for Wireless Sensor Networks,” Security and Communication Networks, vol. 6, no. 6, pp. 669-688, 2013.
  • O. Khalid and M. Sualeh, “Comparative Study on Mobile Wireless Sensor Network Testbeds,” International Journal of Computer Theory and Engineering, Vol. 5, No. 2, April 2013

Book Chapter

  • O. Khalid, I. A. Khan, R. N. B. Rais, and A. Abbas, “Caching, Security, and Mobility in Content-centric Networking,” in Fog Computing: Theory and Practice (Chap. 4), edited by Assad Abbas, Samee U. Khan, Albert Y. Zomaya, Publisher: John Wiley & Sons,, ISBN: 978-1-119-55169-0 April 2020 (
  • O. Khalid, I. A. Khan, and A. Abbas, “Insights into Software-Defined Networking and Applications in Fog Computing,” in Fog Computing: Theory and Practice (Chap. 16), edited by Assad Abbas, Samee U. Khan, Albert Y. Zomaya, Publisher: John Wiley & Sons, ISBN: 978-1-119-55169-0 April 2020 (
  • O. Khalid, I. A. Khan, R. N. B. Rais, and A. W. Malik, “An Insight into 5G Networks with Fog Computing,” in Fog Computing: Theory and Practice (Chap. 20), edited by Assad Abbas, Samee U. Khan, Albert Y. Zomaya, Publisher: John Wiley & Sons, ISBN: 978-1-119-55169-0 April 2020 (
  • R. Jadoon, W. Y. Zhou, O. Khalid, “Performance Metrics for Traditional and Context-Aware Big Data Recommender Systems,” Big Data Recommender Systems, Volume 2: Application Paradigms, Institution of Engineering and Technology, (IET) ISBN: 978-1-78561-975-5, Published on July 18, 2019 (
  • Kashif Bilal, Osman Khalid, Saif Ur Rehman Malik, Muhammad Usman Shahid Khan, Samee U. Khan and Albert Y. Zomaya, Fault Tolerance in the Cloud, (Book Chapter number 24) in Book Title: Encyclopedia of Cloud Computing, edited by San Murugesan and Irena Bojanova, Published Online: 13 MAY 2016, 2016 John Wiley & Sons, Ltd. DOI: 10.1002/9781118821930.ch24 (
  • O. Khalid, S. U. Khan, S. A. Madani, K. Hayat, L. Wang, D. Chan, and R. Ranjan, “Opportunistic Databank: A Context-aware on-the-fly Data Center for Mobile Networks,” in Handbook on Data Centers, S. U. Khan and A. Y. Zomaya, Eds., Springer-Verlag, New York, USA. pp 1077-1094, Date: 17 March 2015 (


Conference Papers

  • M. A. Khan, R. N. B. Rais, O. Khalid, F. G. Khan, “A Comparative Analysis of Federated and Centralized Machine Learning for Intrusion Detection in IoT,” 2023 24th International Arab Conference on Information Technology (ACIT), Ajman, United Arab Emirates, 6-8 Dec. 2023 (URL:
  • Rao Naveed Bin Rais, Osman Khalid, Jazib-e-Nazar, and Muhammad Usman Shahid Khan, “Analysis of Intrusion Detection Using Ensemble Stacking-Based Machine Learning Techniques in IoT Networks,” The 2023 international conference on advances in compute research (ACR’23), ORLANDO, USA, MAY 8-10, 2023
  • R. N. B. Rais, O. Khalid, “The Insights of Mobile Data Offloading: A Comparative Study,”  ICUFN 2019 conference in Zagreb, Croatia, 2-5 July, 2019.
  • Rab Nawaz, Wuyang Zhou, Muhammad Usman Shahid, and Osman Khalid, “A Qualitative Comparison of Popular Middleware Architectures used in Grid Computing Environment,” International Conference on Computer and Communication Systems, Poland, (ICCCS 11-14 July 2017)
  • O. Khalid, S. U. Khan, J. Kolodziej, L. Zhang, J. Li, K. Hayat, S. A. Madani, L. Wang, and D. Chen, “A Checkpoint Based Message Forwarding Approach for Opportunistic Communication,” in 26th European Conference on Modeling and Simulation (ECMS), Koblenz, Germany, May 2012, pp. 512-518.
  • H. Qadir, O. Khalid, S. S. Hussain, and M. U. Shahid, “Carpooling Services: A Comparative Study,” First International Conference on Emerging Trends in Science and Technology (ICETST) September, 2016. (–1st-multidisciplinary-international-graduate-conference–february-22-24-2017/)

Technical Blogs

  • O. Khalid, K. Bilal, and S. U. Khan, “Green Computing,” IEEE Technical Committee on Scalable Computing Blog, Apr. 16, 2012. (

Conference Posters

  • O. Khalid and S. U. Khan, “Opportunistic Communications using Checkpoints in Delay Tolerant Networks,” in ND EPSCoR State Conference, sponsor: North Dakota Experimental Program to Stimulate Competitive Research (EPSCoR), Grand Forks, ND, USA, Apr. 2014.