• A sparsity-aware approach for NBI estimation and mitigation in large cognitive radio networks 

      Gouissem, A.; Hamila, R.; Al-Dhahir, N.; Foufou, S. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      Underlay cognitive networks should follow strict interference thresholds to operate in parallel with primary networks. This constraint limits their transmission power and eventually the coverage area. Therefore, in this ...
    • Achieving energy efficiency in data centers with a performance-guaranteed power aware routing 

      Baccour, E.; Foufou, S.; Hamila, R.; Tari, Z. ( Elsevier B.V. , 2017 , Article)
      Nowadays, data centers are designed to offer the highest performance in case of high traffic load and peak utilisation of the network. However, in a realistic data center environment, the peak capacity of the network is ...
    • Deterministic measurement procedures for diagnosis of massive uniform linear antenna arrays 

      Mokhtar, M.; Hamila, R.; Bajwa, W. U.; Al-Dhahir, N. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)
      The number and relative geometry of collected measurements significantly affect the reliability of massive antenna array diagnosis. In this paper, we investigate and compare two deterministic algorithms for taking measurements ...
    • OFDM Full-Duplex DF Relaying under I/Q Imbalance and Loopback Self-Interference 

      Mokhtar, M.; Al-Dhahir, N.; Hamila, R. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)
      We analyze the outage probability of dual-hop full-duplex (FD) decode-and-forward (DF) relaying for an orthogonal frequency-division multiplexing (OFDM) system in the presence of in-phase and quadrature-phase (I/Q) imbalance ...
    • PTNet: An efficient and green data center network 

      Baccour, E.; Foufou, S.; Hamila, R.; Tari, Z.; Zomaya, A.Y. ( Academic Press Inc. , 2017 , Article)
      In recent years, data centers have witnessed an exponential growth for hosting hundreds of thousands of servers as well as to accommodating a very large demand for resources. To fulfill the required level of demand, some ...
    • Residual self-interference analysis for full-duplex OFDM transceivers under phase noise and I/Q imbalance 

      Samara, L.; Mokhtar,M.; Ozdemir, O.; Hamila, R.; Khattab, T. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      In this letter, we investigate the detrimental effects of phase noise (PN) and in-phase/quadrature (I/Q) imbalance (IQI) on full-duplex OFDM transceivers. In particular, we derive a closed-form expression for the average ...
    • Robust GNC approach for quantised compressed sensing 

      Elleuch, I.; Abdelkefi, F.; Siala, M.; Hamila, R.; Al-Dahir, N. ( Institution of Engineering and Technology , 2017 , Article)
      Practical acquisition of compressed sensing measurements involves a finite-range finite-precision quantisation step. To solve the sparse recovery problem and handle the quantisation distortion, this Letter proposes a ...
    • Sparsity-aware multiple relay selection in large multi-hop decode-and-forward relay networks 

      Gouissem, A.; Hamila, R.; Al-Dhahir, N.; Foufou, S. ( Springer International Publishing , 2016 , Article)
      In this paper, we propose and investigate two novel techniques to perform multiple relay selection in large multi-hop decode-and-forward relay networks. The two proposed techniques exploit sparse signal recovery theory to ...
    • Sparsity-aware narrowband interference mitigation and subcarriers selection in OFDM-based cognitive radio networks 

      Gouissem, A.; Hamila, R.; Al-Dhahir, N.; Foufou, S. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      In this paper, the performance of an orthogonal frequency division multiplexing overlay cognitive radio network with subcarrier selection schemes is investigated. We propose three subcarrier selection techniques that reduce ...