Now showing items 1-3 of 3

  • Optical spatial modulation design 

    Authors:Tezcan, Çoğalan; Harald, Haas; Panayırcı, Erdal
    Publisher and Date:(Royal Soc, 2020)
    Visible light communication (VLC) systems are inherently signal-to-noise ratio (SNR) limited due to link budget constraints. One favourable method to overcome this limitation is to focus on the pre-log factors of the channel capacity. Multiple-input multiple-output (MIMO) techniques are therefore a promising avenue of research. However, inter-channel interference in MIMO limits the achievable capacity. Spatial modulation (SM) avoids this limitation. Furthermore, the performance of MIMO systems in ...

  • Optimal rate and power allocation algorithm in tdd-ofdm based two-tier femtocell networks 

    Authors:Altabaa, Mhd Tahssin
    Publisher and Date:(Kadir Has University, 2014)
    People nowadays are witnessing the acceleration of development of electronics. The new technologies of electronic devices has made mobile phones smarter and more technologically advanced, where they support software platforms and applications that increased the demands on high data rates and gives the users the ability to play online games, video chat, upload-download data, and watch videos on social networks and other video-streaming websites. According to statistics of researches and telecommunication ...

  • SISO - MIMO applications and analysis of visible light communications systems 

    Authors:Yeşilkaya, Anıl
    Publisher and Date:(Kadir Has University, 2016)
    Rapid development in technology and increasing necessity to reach information instantaneously saturates RF bands rapidly. Because of that, it can be seen that we are gradually approaching upper limits of the band. It can said that, operating beyond that upper limit would be hard and unfeasible for 5th generation mobile systems (5G). At this point, it is needed to develop alternative telecommunication systems to RF technology. VLC could be the most appropriate and appealing solution for researchers ...