Browsing by Author "Remlein, Piotr"

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    Ofdm With Transmit and Receive Antenna Selection Based on Subcarrier Groups
    (IEEE, 2012) Remlein, Piotr; Cogalan, Tezcan; Güçlüoğlu, Tansal
    In this paper the performance of coded OFDM transmission over multiple antennas is explored when joint transmit and receive antenna selection is employed. The channel is assumed as Rayleigh frequency selective fading channel and only receiver is assumed to have perfect channel state information (CSI). The performance of MIMO OFDM system using pragmatic coding techniques such as convolutional coding (CC) and space-time block coding (STBC) with antenna selection based on subcarrier groups and other types such as all-tone per-tone and hybrid techniques are obtained via computer simulations. The results suggests that joint antenna selection particularly based on subcarrier groups can be a desirable option in Worldwide Interoperability for Microwave Access (WiMAX) and Long Term Evolution (LTE) standards.
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    Space Time Turbo Coded Ofdm System With Transmit and Receive Antenna Selection
    (IEEE, 2011) Erdoğan, Eylem; Remlein, Piotr; Güçlüoğlu, Tansal
    In this paper a space-time turbo coded (STTC) orthogonal frequency division multiplexing (OFDM) system with QPSK signalling is explored when joint transmit and receive antenna selection is employed. Maximization of signal to noise ratio is used for antenna selection based on per-tone all-tone or hybrid selection criteria. Simulation results show that applying joint transmit/receive antenna selection techniques for STTC-OFDM systems can improve error rate performances considerably by achieving high diversity orders thus make it preferable for standards of high speed wireless networks. © 2011 Chamber of Turkish Electric.