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A space-time block-coded OFDM scheme for unknown frequency-selective fading channels

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3 Author(s)
M. Uysal ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; N. Al-Dhahir ; C. N. Georghiades

We introduce a space-time block-coded orthogonal frequency-division multiplexing (STBC-OFDM) selective fading channels which does not require channel knowledge either at the transmitter or at the receiver. The decoding algorithm is based on generalized maximum-likelihood sequence estimation. We investigate the performance of the proposed scheme over two-tap Rayleigh fading channels. Simulation results show the performance to be near optimum.

Published in:

IEEE Communications Letters  (Volume:5 ,  Issue: 10 )