S.C. Cho, H.J. Kim, and J.U. Kim (Korea)
OFDM, TDD, STBC, Turbo code
In this paper, a novel mobile Internet access system based on OFDM/TDMA TDD is proposed and its performance is analyzed via computer simulations. We combined a space-time block coding with an OFDM system using turbo code. In this paper, we present simulation results for the performance of a turbo coded OFDM/TDMA system with QPSK, 16QAM, and 64QAM over ITU-R channel models. The performance of the proposed system employing the pilot tones assisted channel estimation is compared to the ideal case with perfect channel estimation.
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