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[Keyword] carrier interferometry OFDM (CI/COFDM)(1hit)

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  • Performance Comparison of Carrier Interferometry OFDM and OFDM Using Space Diversity Reception and Channel Coding

    Fumiaki MAEHARA  Hans-Peter KUCHENBECKER  

     
    LETTER-Wireless Communication Technologies

      Vol:
    E87-B No:12
      Page(s):
    3801-3808

    This paper presents a performance comparison between carrier interferometry coded OFDM (CI/COFDM) and typical coded OFDM (COFDM) using multiple receive antennas. The feature of CI/COFDM with diversity reception is to combine the time diversity benefit introduced by channel coding with the frequency and space diversity benefits created by frequency-domain equalization (FDE). Simulation results for QPSK showed that, at the perfect channel estimation, CI/COFDM outperforms COFDM under frequency and time selective fading channels because of the powerful time diversity benefit introduced by channel coding with time interleaving. However, at the imperfect channel estimation, this advantage of CI/COFDM over COFDM becomes very limited.