Yazar "Ilhan H." seçeneğine göre listele

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    SNR-based antenna selection schemes for cooperative relay networks in wireless channels
    (Institute of Electrical and Electronics Engineers Inc., 2014) Aydin E.; Ilhan H.; Özdemir O.
    In this paper, two different antenna selection models based on signal-to-noise ratio (SNR) have been proposed in order to reduce the end-to-end bit error rate (BER) of decode and forward (DF) relaying cooperative system where source and destination terminals contain single antenna while relay terminal has multiple antennas. Specifically, by using instantaneous and average SNR of source-to-destination, source-to-relay and relay-to-destination links, optimal decision rules are derived theoretically for antenna selection at the relay terminal. Later, BER expressions of considered system have been derived for two antenna selection models over Rayleigh fading channels. Theoretical and simulation results show the validity of proposed mathematical analysis and point out the confirmation of theoretical results. © 2014 IEEE.
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    SNR-based antenna selection with threshold value in wireless channels [Telsiz kanallarda esik degerlikli SNR-tabanli anten seçimi]
    (2013) Aydin E.; Ilhan H.; Özdemir O.
    In this study, in order to reduce the end-to-end bit error rate (BER) at the destination, two different antenna selection models based on signal to noise ratio (SNR) have been proposed. Relay node contains multiple antennas and BPSK modulation is used. In these models under consideration, different optimal decision rule is determined theoretically. To generate each threshold decision rule, either instantaneous and average SNR or both together in S›D, S›R and R›D links are used. Proposed antenna selection algorithm with the optimal threshold value can reduce significantly the end-to-end BER according to the simple relaying technique. © 2013 IEEE.