Browsing by Subject "Antenna arrays"

Now showing items 1-6 of 6

    • A simple cross correlation switched beam system (XSBS) for angle of arrival estimation 

      Badawy A.; Khattab T.; Trinchero D.; Elfouly T.M.; Mohamed A. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      We propose a practical, simple and hardware friendly, yet novel and efficient, angle of arrival (AoA) estimation system. Our intuitive, two-phases cross-correlation-based system requires a switched beam antenna array with ...

    • A Collaboration Incentive Exploiting the Primary-Secondary Systems' Cross Interference for PHY Security Enhancement 

      Tourki, Kamel; Hasna, Mazen O. ( IEEE , 2016 , Article)
      We investigate the spectrum sharing possibility as an incentive to enhance the physical layer security. The concept behind is that a legitimate source-destination pair, communicating in the presence of a passive eavesdropper, ...

    • Estimating the number of sources: An efficient maximization approach 

      Salman T.; Badawy A.; Elfouly T.M.; Mohamed A.; Khattab T. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      Estimating the number of sources received by an antenna array have been well known and investigated since the starting of array signal processing. Accurate estimation of such parameter is critical in many applications that ...

    • Multiple antenna cyclostationary-based detection of primary users with multiple cyclic frequency in Cognitive Radios 

      Sedighi, Saeid; Taherpour, Abbas; Khattab, Tamer; Hasna, Mazen O. ( IEEE , 2014 , Conference Paper)
      In this paper, we study the problem of multiple antenna spectrum sensing by using cyclostationary features of Primary Users (PUs) signals in Cognitive Radios (CRs). We consider the general case of multiple antenna sensing ...

    • Secure multiple-users transmission using multi-path directional modulation 

      Hafez, Mohammed; Khattab, Tamer; Elfouly, Tarek; Arslan, Huseyin ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      This work introduces a physical-layer secure multiple-users communication scheme. Our scheme employs the multi-path nature of the wireless channel to provide a different secure communication link for each of the legitimate ...

    • Secure Spatial Multiple Access Using Directional Modulation 

      Hafez, Mohammed; Yusuf, Marwan; Khattab, Tamer; Elfouly, Tarek; Arslan, Hüseyin ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      In this paper, we introduce a secure multiple access scheme, which exploits the multipath structure of the channel to create a multi-user interference environment. The generated interference enables legitimate users to ...