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BER Performance of OFDM Combined with TDM Using Frequency-Domain Equalization  

Gacanin, Haris (Department of Electrical and Communication Engineering, Tohoku University)
Takaoka, Shinsuke (Next-Generation Mobile Communications Development Center Matsushita Electric Industrial Co., Ltd.)
Adachi, Fumiyuki (Department of Electrical and Communication Engineering, Tohoku University)
Publication Information
Journal of Communications and Networks / v.9, no.1, 2007 , pp. 34-42 More about this Journal
Abstract
Orthogonal frequency division multiplexing (OFDM) combined with time division multiplexing (TDM), in this paper called OFDM/TDM, can overcome the high peak-to-average-power ratio (PAPR) problem of the conventional OFDM and improve the robustness against long time delays. In this paper, the bit error rate (BER) performance of OFDM/FDM in a frequency-selective Rayleigh fading. channel is evaluated by computer simulation. It is shown that the use of frequency-domain equalization based on minimum mean square error criterion (MMSE-FDE) can significantly improve the BER performance, compared to the conventional OFDM, by exploiting the channel frequency-selectivity while reducing the PAPR or improving the robustness against long time delays. It is also shown that the performance of OFDM/FDM designed to reduce the PAPR can bridge the conventional OFDM and single-carrier (SC) transmission by changing the design parameter.
Keywords
Frequency-domain equalization; frequency-selective fading; orthogonal frequency division multiplexing (OFDM); peak-to-average-power ratio (PAPR);
Citations & Related Records

Times Cited By Web Of Science : 6  (Related Records In Web of Science)
Times Cited By SCOPUS : 6
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