All Stories

  1. A Time-Varied Probabilistic ON/OFF Switching Algorithm for Cellular Networks

    Article • IEEE Communications Letters, March 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  2. Energy-Efficient Management of Unmanned Aerial Vehicles for Underlay Cognitive Radio Systems

    Article • IEEE Transactions on Green Communications and Networking, December 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  3. Optimization of a Power Splitting Protocol for Two-Way Multiple Energy Harvesting Relay System

    Article • IEEE Transactions on Green Communications and Networking, December 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  4. Joint Demand-Side Management in Smart Grid for Green Collaborative Mobile Operators Under Dynamic Pricing and Fairness Setup

    Article • IEEE Transactions on Green Communications and Networking, March 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  5. Achievable Rates of UAV-Relayed Cooperative Cognitive Radio MIMO Systems

    Article • IEEE Access, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  6. Energy Management Optimization for Cellular Networks under Renewable Energy Generation Uncertainty

    Article • IEEE Transactions on Green Communications and Networking, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  7. Optimized LTE Cell Planning With Varying Spatial and Temporal User Densities

    Article • IEEE Transactions on Vehicular Technology, March 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  8. Next-Generation Environment-Aware Cellular Networks: Modern Green Techniques and Implementation Challenges

    Article • IEEE Access, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  9. On Green Cognitive Radio Cellular Networks: Dynamic Spectrum and Operation Management

    Article • IEEE Access, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  10. Achievable Rate of Spectrum Sharing Cognitive Radio Multiple-Antenna Channels

    Article • IEEE Transactions on Wireless Communications, September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  11. A game theoretical approach for cooperative green mobile operators under roaming price consideration

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Seifallah Jardak, Dr Hakim Ghazzai

  12. On achievable rate of two-way relaying cognitive radio with space alignment

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  13. On the Dual-Decomposition-Based Resource and Power Allocation with Sleeping Strategy for Heterogeneous Networks

    Article • May 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  14. Achievable Rate of a Cognitive MIMO Multiple Access Channel With Multi-Secondary Users

    Article • IEEE Communications Letters, March 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  15. Achievable Rate of Multi-relay Cognitive Radio MIMO Channel with Space Alignment

    Article • January 2015, Springer Science + Business Media

    Dr Hakim Ghazzai

  16. Bandwidth and power allocation for two-way relaying in overlay cognitive radio systems

    Article • December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  17. Optimized Smart Grid Energy Procurement for LTE Networks Using Evolutionary Algorithms

    Article • IEEE Transactions on Vehicular Technology, November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  18. A game theoretical approach for cooperative environmentally friendly cellular networks powered by the smart grid

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  19. Multi-Operator Collaboration for Green Cellular Networks under Roaming Price Consideration

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  20. Optimized LTE Cell Planning for Multiple User Density Subareas Using Meta-Heuristic Algorithms

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  21. On the impact of D2D traffic offloading on energy efficiency in green LTE-A HetNets

    Article • Wireless Communications and Mobile Computing, August 2014, Wiley

    Dr Elias Yaacoub, Dr Hakim Ghazzai

  22. Near-optimal power allocation with PSO algorithm for MIMO cognitive networks using multiple AF two-way relays

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  23. Energy-efficient two-hop LTE resource allocation in high speed trains with moving relays

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  24. On the throughput of a relay-assisted cognitive radio MIMO channel with space alignment

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  25. Efficient multiple antenna-relay selection algorithms for MIMO unidirectional-bidirectional cognitive relay networks

    Article • Transactions on Emerging Telecommunications Technologies, April 2014, Wiley

    Dr Hakim Ghazzai

  26. Energy efficient design for MIMO two-way AF multiple relay networks

    Article • April 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  27. Optimal Transmit Power Allocation for MIMO Two-Way Cognitive Relay Networks with Multiple Relays using AF Strategy

    Article • IEEE Wireless Communications Letters, February 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  28. A Genetic Algorithm for Multiple Relay Selection in Two-Way Relaying Cognitive Radio Networks

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  29. Performance of Green LTE Networks Powered by the Smart Grid with Time Varying User Density

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  30. Achieving energy efficiency in LTE with joint D2D communications and green networking techniques

    Article • July 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  31. A low complexity algorithm for multiple relay selection in two-way relaying Cognitive Radio networks

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  32. Achievable rate of cognitive radio spectrum sharing MIMO channel with space alignment and interference temperature precoding

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  33. Optimized green operation of LTE networks in the presence of multiple electricity providers

    Article • December 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hakim Ghazzai

  34. A Genetic Algorithm Solution for the Operation of Green LTE Networks with Energy and Environment Considerations

    Article • January 2012, Springer Science + Business Media

    Dr Hakim Ghazzai