Browsing by Author "Qaraqe K."

Now showing items 1-9 of 9

    • A Deep Learning Model for LoRa Signals Classification Using Cyclostationay Features 

      Almohamad A.; Hasna , Mazen; Althunibat S.; Tekbiyik K.; Qaraqe K. ( IEEE Computer Society , 2021 , Conference Paper)
      With the witnessed exponential growth of Internet of Things (IoT) nodes deployment following the emerging applications, multiple variants of technologies have been proposed to handle the IoT requirements. Among the proposed ...

    • A downlink index-modulation based nonorthogonal multiple access scheme 

      Almohamad A.; Althunibat S.; Hasna , Mazen; Qaraqe K. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)
      Massive connectivity and spectral efficiency are among the main defining terms of the future communications era. Therefore, revolutionary technologies are required to keep up with the connectivity and spectrum demands. ...

    • A Novel Downlink IM-NOMA Scheme 

      Almohamad A.; Hasna , Mazen; Althunibat S.; Qaraqe K. ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      In the next generations of communication systems, resources' scarcity devolves to a more critical point as a consequence of the expected massive number of users to be served. Furthermore, the users' contradicting requirements ...

    • Low Complexity Constellation Rotation-based SIC Detection for IM-NOMA Schemes 

      Almohamad A.; Hasna , Mazen; Althunibat S.; Ozyurt S.; Qaraqe K. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)
      With the expected explosive growth in the user density in wireless networks, recent works have investigated the integration of index modulation (IM) with multiple access schemes, namely the non-orthogonal multiple access ...

    • On the Error Performance of Non-orthogonal Multiple Access Systems 

      Almohamad A.; Althunibat S.; Hasna , Mazen; Qaraqe K. ( IEEE Computer Society , 2020 , Conference Paper)
      Unlike orthogonal multiple access schemes, non-orthogonal (NOMA) ones have arisen as an appealing solution to meet the requirements of the upcoming era of massive connectivity. In NOMA schemes, users are allowed to ...

    • Outage analysis of selective cooperation in underlay cognitive networks with fixed gain relays and primary interference modeling 

      Hussain S.I.; Alouini M.-S.; Qaraqe K.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)
      Selective cooperation is a well investigated technique in non-cognitive networks for efficient spectrum utilization and performance improvement. However, it is still a nascent topic for underlay cognitive networks. Recently, ...

    • Partial relay selection in underlay cognitive networks with fixed gain relays 

      Hussain S.I.; Alouini M.-S.; Hasna , Mazen; Qaraqe K. ( IEEE , 2012 , Conference Paper)
      In a communication system with multiple cooperative relays, selecting the best relay utilizes the available spectrum more efficiently. However, selective relaying poses a different problem in underlay cognitive networks ...

    • Performance analysis of selective cooperation in underlay cognitive networks over Rayleigh channels 

      Hussain S.I.; Abdallah M.M.; Alouini M.-S.; Hasna , Mazen; Qaraqe K. ( IEEE , 2011 , 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 area of coverage. Therefore, it is ...

    • Reactive relay selection in underlay cognitive networks with fixed gain relays 

      Hussain S.I.; Alouini M.-S.; Qaraqe K.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)
      Best relay selection is a bandwidth efficient technique for multiple relay environments without compromising the system performance. The problem of relay selection is more challenging in underlay cognitive networks due to ...