Browsing by Author "Uysal M."

Now showing items 1-5 of 5

    • Cooperative OFDM systems for UWAC with SNR-based relay selection schemes 

      Karakaya B.; Sökün, Hamza Ümit; Uysal M.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)
      In this paper, we investigate a multi-carrier multi-relay cooperative system with amplify-and-forward relaying over frequency-selective underwater acoustic channels. Relay selection rules rely on the maximization of ...

    • Evaluation of FSO link throughput in Qatar 

      Hussain S.J.; Touati A.; Elamri M.; Touati F.; Uysal M. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      Despite the vibrant advantages of Free Space Optics (FSO) technology and the variety of its applications, its widespread adoption has been hampered by rather disappointing link reliability for long-range links due to ...

    • Multi-resampling Doppler compensation in cooperative underwater OFDM systems 

      Karakaya B.; Hasna , Mazen; Duman T.M.; Uysal M.; Ghrayeb A. ( IEEE , 2013 , Conference Paper)
      We consider a multi-carrier cooperative underwater acoustic communication (UWAC) system and investigate the Doppler scaling problem arising due to the motion of different nodes. Specifically, we assume an orthogonal frequency ...

    • Outage performance of multi-hop hybrid FSO/RF communication systems 

      Kazemi H.; Uysal M.; Touati F.; Haas H. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      In this paper, five scenarios are considered for the realization of a multi-hop hybrid free-space optical/radio frequency (FSO/RF) communication system with decode-and-forward (DF) relaying, and analytical outage probability ...

    • Relay selection for cooperative underwater acoustic communication systems 

      Karakaya B.; Omar Hasna , Mazen; Uysal M.; Duman T.M.; Ghrayeb A. ( IEEE , 2012 , Conference Paper)
      In this paper, we consider a multi-carrier and multi-relay underwater acoustic communication (UWAC) system and investigate the relay selection problem. Our channel model is built on an aggregation of both large-scale path ...