• A Hybrid Energy Sharing Framework for Green Cellular Networks 

      Farooq, Muhammad Junaid; Ghazzai, Hakim; Kadri, Abdullah; ElSawy, Hesham; Alouini, Mohamed-Slim ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)
      Cellular operators are increasingly turning toward renewable energy (RE) as an alternative to using traditional electricity in order to reduce operational expenditure and carbon footprint. Due to the randomness in both RE ...
    • Energy management optimization for cellular networks under renewable energy generation uncertainty 

      Ben Rached, Nadhir; Ghazzai, Hakim; Kadri, Abdullah; Alouini, Mohamed-Slim ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)
      The integration of renewable energy (RE) as an alternative power source for cellular networks has been deeply investigated in the literature. However, RE generation is often assumed to be deterministic; an impractical ...
    • Green operator cooperation for radio frequency transmission minimization 

      Amamou, Lamis; Boujelben, Maissa; Ghazzai, Hakim; Bouallegue, Ammar; Besbes, Hichem ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      The increasing demand for reliable mobile services with faster communications speed requires high capital investment in the radio access networks. This leads to enormous energy consumption, high operational costs (OPEX), ...
    • Joint Demand-Side Management in Smart Grid for Green Collaborative Mobile Operators under Dynamic Pricing and Fairness Setup 

      Ghazzai, Hakim; Kadri, Abdullah ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      In this paper, the interactions between multiple mobile operators, owning heterogeneous cellular networks, and energy retailers existing in the smart grid are investigated. Energy procurement decisions of the cellular ...
    • Precoder Design and Power Allocation for MIMO Cognitive Radio Two-Way Relaying Systems 

      Sboui, Lokman; Ghazzai, Hakim; Rezki, Zouheir; Alouini, Mohamed-Slim ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      In this paper, we study a multiple-antenna two-way relaying (TWR) cognitive radio (CR) system. A space alignment (SA) technique is adopted by the secondary users (SUs) to avoid interference with the primary users (PUs). ...