Browsing by Author "Samara, L."

Now showing items 1-13 of 13

    • A Unified Framework for Differentiated Services in Intelligent Healthcare Systems 

      Al-Abbasi, A. O.; Samara, L.; Salem, S.; Hamila, R.; Al-Dhahir, N. ( IEEE , 2022 , Article)
      The Coronavirus disease 2019 (COVID-19) outbreak continues to significantly expose the vulnerabilities of healthcare systems around the world. These unprecedented circumstances create an opportunity for improving healthcare ...

    • Full-Duplex Amplify-and-Forward Relaying under I/Q Imbalance 

      Samara L.; Gouissem A.; Hamila R.; Hasna , Mazen; Al-Dhahir N. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)
      A major performance limiter in amplify-and-forward (AF) full-duplex (FD) relaying is the high level of residual self-interference (SI) due to the imperfect estimation of the effective self-interfering channel. One primary ...

    • Full-Duplex Jamming and Interception Analysis of UAV-Based Intrusion Links 

      Abughalwa M.; Samara L.; Hasna , Mazen; Hamila R. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)
      This letter addresses the evaluation of the performance of a full-duplex (FD) jammer and intercepting node, where the FD node attempts to disrupt the communication link of an intruding unmanned aerial vehicle (UAV). The ...

    • Hybrid Full-Duplex and Alternate Multiple Relay Selection and Beamforming in AF Cooperative Networks 

      Samara L.; Gouissem A.; Hamila R. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)
      In this paper, multiple relay selection and beamforming techniques are applied to a dual-hop full-duplex (FD) amplify-and-forward relaying network. We show that our proposed techniques allow the selection to be adaptive ...

    • Machine-Learning Based Relay Selection in AF Cooperative Networks 

      Gouissem A.; Samara L.; Hamila R.; Al-Dhahir N.; Ben-Brahim L.; ... more authors ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)
      With the significant increase of wireless network nodes and traffic load in recent years, especially in the emerging internet-of-things (IoT) and vehicular networks, the design of a fast adaptive relay selection algorithm ...

    • Maximum likelihood detection of precoded SFBC in frequency-selective fading channels 

      Al-Dweik A.; Hamila R.; Samara L.; Filio-Rodriguez O. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      In this paper, we derive the maximum likeli-hood detector (MLD) for precoded space-frequency block coded (SFBC) systems where orthogonal frequency divi-sion multiplexing (OFDM) is incorporated. The obtained results reveal ...

    • Mean squared error analysis for OFDMA signals under joint Tx/Rx IQ imbalance 

      Samara L.; Hamila R.; Khattab T.; Ozdemir O. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      In this paper, a normalized mean squared error (NMSE) expression is derived for an orthogonal frequency division multiple access link under the effects of joint transmitter (Tx) and receiver (Rx) in-phase/quadrature imbalance ...

    • MEdge-Chain: Leveraging Edge Computing and Blockchain for Efficient Medical Data Exchange 

      Abdellatif A.A.; Samara L.; Mohamed A.; Erbad A.; Chiasserini C.F.; ... more authors ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      Medical data exchange between diverse e-health entities can lead to a better healthcare quality, improving the response time in emergency conditions, and a more accurate control of critical medical events (e.g., national ...

    • On the Performance of Tactical Communication Interception Using Military Full Duplex Radios 

      Samara L.; Gouissem A.; Abdellatif A.A.; Hamila R.; Hasna M.O. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)
      Advances in the design of Full-Duplex (FD) transceivers with low residual Self-Interference (SI) levels has led to their deployment in various wireless communication applications. One promising field that FD transceivers ...

    • Reduced-complexity sparsity-aware joint phase noise mitigation and channel equalization in OFDM receivers 

      Samara L.; Al-Abbasi A.O.; Hamila R.; Al-Dhahir N. ( Elsevier B.V. , 2018 , Article)
      A major performance and complexity limitation in direct-conversion broadband wireless transceivers is the phase noise (PN) resulting from the inevitable imperfections in the fabrication process of the crystal oscillator. ...

    • Relay selection in FDD amplify-and-forward cooperative networks 

      Gouissem A.; Samara L.; Hamila R.; Al-Dhahir N.; Foufou S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      In this paper, the problems of relay selection and distributed beamforming are investigated for bi-directional dual-hop amplify-and-forward frequency-division duplex cooperative wireless networks. When using individual ...

    • 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 ...

    • Sparse Equalizers for OFDM Signals with Insufficient Cyclic Prefix 

      Samara L.; Alabassi A.O.; Hamila R.; Al-Dhahir N. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)
      The cyclic prefix (CP) is appended in orthogonal frequency division multiplexing (OFDM) signals to combat inter-symbol interference (ISI) and inter-carrier interference (ICI) induced by the communication channel, which ...