• A General Framework for Designing Sparse FIR MIMO Equalizers Based on Sparse Approximation 

      Al-Abbasi, Abubakr Omar; Hamila, Ridha; Bajwa, Waheed; Al-Dhahir, Naofal ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      In broadband communications, the long channel delay spread, defined as the duration in time, or samples, over which the channel impulse response (CIR) has significant energy, is too long and results in a highly-frequency-selective ...
    • A Novel UAV-Aided Network Architecture Using Wi-Fi Direct 

      Khan, Muhammad Asif; Hamila, Ridha; Kiranyaz, Mustafa Serkan; Gabbouj, Moncef ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)
      The use of unmanned aerial vehicles (UAVs) in future wireless networks is gaining attention due to their quick deployment without requiring the existing infrastructure. Earlier studies on UAV-aided communication consider ...
    • A Survey on Mobile Edge Computing for Video Streaming: Opportunities and Challenges 

      Khan, Muhammad Asif; Baccour, Emna; Chkirbene, Zina; Erbad, Aiman; Hamila, Ridha; ... more authors ( IEEE , 2022 , Article)
      5G communication brings substantial improvements in the quality of service provided to various applications by achieving higher throughput and lower latency. However, interactive multimedia applications (e.g., ultra high ...
    • Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels 

      El Shafie, Ahmed; Sultan, Ahmed; Krikidis, Ioannis; Al-Dhahir, Naofal; Hamila, Ridha ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      We derive closed-form expressions for the achievable rates of a buffer-aided full-duplex (FD) multiple-input multiple-output Gaussian relay channel. The FD relay still suffers from residual self-interference (RSI) after ...
    • Adaptative Network Topology for Data Centers 

      Chkirbene, Zina; Foufou, Sebti; Hamila, Ridha ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Data centers have an important role in supporting cloud computing services (such as email, social networking, web search, etc.) enterprise computing needs, and infrastructure-based services. Data center networking is a ...
    • Advanced DSP Algorithms For Modern Wireless Communication Transceivers 

      Samara, Lutfi Zuhair Lutfi (2019 , Dissertation)
      A higher network throughput, a minimized delay and reliable communications are some of many goals that wireless communication standards, such as the fifthgeneration (5G) standard and beyond, intend to guarantee for its ...
    • Advancing Data Center Networks: A Focus on Energy and Cost Efficiency 

      Chkirbene, Zina; Hamila, Ridha; Al-Dweik, Arafat; Khattab, Tamer ( IEEE , 2023 , Article)
      Data centers serve as the backbone for cloud computing, enterprise services, and infrastructure-based offerings. One area of ongoing research in data center networking focuses on innovating new topologies for large-scale ...
    • Analysis of In-band Full-Duplex OFDM Signals Affected by Phase Noise and I/Q Imbalance 

      Samara, Lutfi; Ozdemir, Ozgur; Mokhtar, Mohamed; Hamila, Ridha; Khattab, Tamer ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      The idea of the simultaneous transmission and reception of data using the same frequency is a potential candidate to be deployed in the next generation wireless communications standard 5G. The In-Band Full-Duplex (IBFD) ...
    • Beamforming OFDM Performance under Joint Phase Noise and I/Q Imbalance 

      Hamila, Ridha; Ozdemir, Ozgur; Al-Dhahir, Naofal ( IEEE , 2015 , Article)
      Phase noise (PHN) and in-phase/quadrature (I/Q) imbalance are two major RF impairments in direct-conversion wireless transceivers. Beamforming and orthogonal frequency division multiplexing (OFDM) schemes have been adopted ...
    • Coexistence of IEEE 802154g and WLAN 

      Mohamed Shalbia, Saad; Hamila, Ridha; Al-Dhahir, Naofal ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      The aging electric grid was established hundred years ago when electricity needs were simple. The power plants were centralized and most homes had only small energy demands such as few lamps and radios. The grid role was ...
    • Exact SINR analysis of OFDM systems under joint Tx/RX I/Q imbalance 

      Ozdemir, Ozgur; Hamila, Ridha; Al-Dhahir, Naofal ( IEEE , 2013 , Conference Paper)
      The direct-conversion architecture used for Orthogonal Frequency Division Multiplexing (OFDM) systems suffers from intercarrier interference (ICI) between image subcarriers in each OFDM symbol due to I/Q imbalance between ...
    • Exploiting Sparsity in Amplify-and-Forward Broadband Multiple Relay Selection 

      Gouissem, Ala; Hamila, Ridha; Al-dhahir, Naofal; Foufou, Sebti ( IEEE , 2019 , Article)
      Cooperative communication has attracted significant attention in the last decade due to its ability to increase the spatial diversity order with only single-antenna nodes. However, most of the techniques in the literature ...
    • Framework for Content Distribution over Wireless LANs 

      Khan, Muhammad Asif (2020 , Dissertation)
      Wireless LAN (also called as Wi-Fi) is dominantly considered as the most pervasive technology for Intent access. Due to the low-cost of chipsets and support for high data rates, Wi-Fi has become a universal solution ...
    • Impact of the Wireless Network's PHY Security and Reliability on Demand-Side Management Cost in the Smart Grid 

      El Shafie, Ahmed; Niyato, Dusit; Hamila, Ridha; Al-Dhahir, Naofal ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      We investigate the impact of the wireless network's physical layer (PHY) security and reliability on demand-side management operation in the smart grid. We assume that consumers communicate their energy demands with the ...
    • Lascada: A novel scalable topology for data center network 

      Chkirbene, Zina; Hadjidj, Rachid; Foufou, Sebti; Hamila, Ridha ( IEEE , 2020 , Article)
      The growth of cloud-based services is mainly supported by the core networking infrastructures of large-scale data centers, while the scalability of these services is influenced by the performance and dependability ...
    • LCDnet: a lightweight crowd density estimation model for real-time video surveillance 

      Khan, Muhammad Asif; Menouar, Hamid; Hamila, Ridha ( Institute for Ionics , 2023 , Article)
      Automatic crowd counting using density estimation has gained significant attention in computer vision research. As a result, a large number of crowd counting and density estimation models using convolution neural networks ...
    • Lightweight KPABE Architecture Enabled in Mesh Networked Resource-Constrained IoT Devices 

      Hijawi, Ula; Unal, Devrim; Hamila, Ridha; Gastli, Adel; Ellabban, Omar ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      Internet of Things (IoT) environments are widely employed in industrial applications including intelligent transportation systems, healthcare systems, and building energy management systems. For such environments of highly ...
    • Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing 

      Zina, Chkirbene; Hasna, Mazen; Hamila, Ridha; Hamdi, Noureddine ( Springer International Publishing , 2016 , Article)
      Spectrum sensing is one of the most essential components of cognitive radio since it detects whether the spectrum is available or not. However, spectrum sensing accuracy is often degraded due to path loss, interference, ...
    • Machine Learning Screening of COVID-19 Patients Based on X-ray Images for Imbalanced Classes 

      Mrad, Ilyes; Hamila, Ridha; Erbad, Aiman; Hamid, Tahir; Mazhar, Rashid; ... more authors ( IEEE , 2021 , Conference Paper)
      COVID-19 is a virus that has infected more than one hundred and fifty million people and caused more than three million deaths by 13th of Mai 2021 and is having a catastrophic effect on the world population's safety. ...
    • Machine learning screening of COVID-19 patients based on X-ray images for unbalanced classes 

      Mrad, Ilyes; Hamila, Ridha; Al-Emadi, Nasser; Erbad, Aiman; Hamid, Tahir; ... more authors ( Hamad bin Khalifa University Press (HBKU Press) , 2021 , Article)
      Background: COVID-19 is a pandemic that had already infected more than forty-six million people and caused more than a million deaths by 1st of November 2020. The virus pandemic appears to have had a catastrophic effect ...