• Distributed Learning-Based Cross-Layer Technique for Energy-Efficient Multicarrier Dynamic Spectrum Access with Adaptive Power Allocation 

      Ben Ghorbel, Mahdi; Hamdaoui, Bechir; Guizani, Mohsen; Khalfi, Bassem ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)
      This paper proposes energy and cross-layer aware resource allocation techniques that allow dynamic spectrum access (DSA) users, by means of learning algorithms, to locate and exploit unused spectrum opportunities effectively. ...
    • Dynamic users assignment and bandwidth allocation for energy efficient hybrid powered communication systems 

      Touzri, Taha; Ghorbel, Mahdi Ben; Hamdaoui, Bechir; Guizani, Mohsen; Khalfi, Bassem ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      In this paper, we aim to encourage the use of renewable power in communication systems through hybrid powering. The problem consists of optimizing the resource allocation problem using the hybrid powering from renewable ...
    • Energy-efficient cloud resource management 

      Dabbagh, Mehiar; Hamdaoui, Bechir; Guizani, Mohsen; Rayes, Ammar ( IEEE , 2014 , Conference Paper)
      We propose a resource management framework that reduces energy consumption in cloud data centers. The proposed framework predicts the number of virtual machine requests along with their amounts of CPU and memory resources, ...
    • Exploiting wideband spectrum occupancy heterogeneity for weighted compressive spectrum sensing 

      Khalfi, Bassem; Hamdaoui, Bechir; Guizani, Mohsen; Zorba, Nizar ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)
      Compressive sampling has shown great potential for making wideband spectrum sensing possible at sub-Nyquist sampling rates. As a result, there have recently been research efforts that aimed to develop techniques that ...
    • Optimal power allocation for smart-grid powered point-to-point cognitive radio system 

      Khalfi, Bassem; Ben Ghorbel, Mahdi; Hamdaoui, Bechir; Guizani, Mohsen ( IEEE , 2014 , Conference Paper)
      This paper proposes an optimal power allocation analysis for a point-to-point wireless system when powered by a smart grid. We propose to minimize the total power consumption cost while ensuring individual and total ...
    • Optimizing joint data and power transfer in energy harvesting multiuser wireless networks 

      Khalfi, Bassem; Hamdaoui, Bechir; Ghorbel, Mahdi Ben; Guizani, Mohsen; Zhang Xi.; ... more authors ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      Energy harvesting emerges as a potential solution for prolonging the lifetime of the energy-constrained mobile wireless devices. In this paper, we focus on radio frequency (RF) energy harvesting for multiuser multicarrier ...
    • Overcoming user selfishness in DSA systems through credit-based resource allocation 

      Alshammari, Tamara; Hamdaoui, Bechir; Guizani, Mohsen; Rayes, Ammar ( IEEE , 2014 , Conference Paper)
      We propose a credit-based resource allocation technique for wireless systems with dynamic spectrum access (DSA) capability, such as multichannel wireless sensor networks. The proposed technique is robust against selfish ...
    • Reducing data center energy consumption through peak shaving and locked-in energy avoidance 

      Alanazi, Sultan; Dabbagh, Mehiar; Hamdaoui, Bechir; Guizani, Mohsen; Zorba, Nizar ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      The grid company enforces high penalties for the peak power demands of cloud data centers. These penalties result in high electricity bills that can be avoided by relying on the servers' uninterruptible power supply (UPS) ...
    • Release-time aware VM placement 

      Dabbagh, Mehiar; Hamdaoui, Bechir; Guizani, Mohsen; Rayes, Ammar ( IEEE , 2014 , Conference Paper)
      Consolidating virtual machines (VMs) on as few physical machines (PMs) as possible so as to turn into sleep as many PMs as possible can make significant energy savings in cloud centers. Although traditional online bin ...
    • Resources allocation for large-scale dynamic spectrum access system using particle filtering 

      Ben Ghorbel, Mahdi; Khalfi, Bassem; Hamdaoui, Bechir; Guizani, Mohsen ( IEEE , 2014 , Conference Paper)
      This paper proposes an efficient spectrum and power allocation solution for a large scale dynamic spectrum access (DSA) systems. Unlike conventional methods relying on optimization techniques which need huge computational ...