Now showing items 1-5 of 5

    • Error rate analysis of cognitive radio transmissions with imperfect channel sensing 

      Ozcan, G.; Gursoy, M. C.; Gezici, Sinan (Institute of Electrical and Electronics Engineers Inc., 2014)
      This paper studies the symbol error rate performance of cognitive radio transmissions in the presence of imperfect sensing decisions. Two different transmission schemes, namely sensing-based spectrum sharing (SSS) and ...
    • Error rate analysis of cognitive radio transmissions with imperfect channel sensing 

      Ozcan G.; Gursoy, M. C.; Gezici, Sinan (IEEE, 2013)
      In this paper, error rate performance of cognitive radio transmissions is studied in the presence of imperfect channel sensing decisions. It is assumed that cognitive users first perform channel sensing, albeit with possible ...
    • Metamaterial-based wireless strain sensors 

      Melik, R.; Unal, E.; Perkgoz, N. K.; Puttlitz, C.; Demir, Hilmi Volkan (American Institute of Physics, 2009-07-07)
      We proposed and demonstrated metamaterial-based strain sensors that are highly sensitive to mechanical deformation. Their resonance frequency shift is correlated with the surface strain of our test material and the strain ...
    • On the interplay between channel sensing and estimation in cognitive radio systems 

      Gursoy, M.C.; Gezici, Sinan (IEEE, 2011)
      Cognitive radio transmissions in the presence of channel uncertainty are considered. In practical scenarios, cognitive secondary users need to perform both channel sensing in order to identify whether the channel is being ...
    • Sabit karasal mikrodalga LOS/NLOS radyo linklerin enterferans analizi 

      Göktaş, Polat; Topcu, Satılmış; Karaşan, Ezhan; Altıntaş, Ayhan (IEEE, 2015-05)
      Bu çalışmada, NATO Band 3+ (1350-2690 MHz) ve NATO Band 4 (4400-5000 MHz) frekans bantlarında çalışan sabit karasal mikrodalga LOS (karasal görüş çizgisi)/ NLOS (ufuk ötesi) radyo linkleri için enterferans modellenmesi ele ...