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BER performance of OFDM combined with TDM using frequency-domain equalization

机译：使用频域均衡的OFDM与TDM结合的BER性能

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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/TDM 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/TDM de- signed to reduce the PAPR can bridge the conventional OFDM and single-carrier (SC) transmission by changing the design parameter.
机译：本文将正交频分复用（OFDM）与时分复用（TDM）结合使用，称为OFDM / TDM，可以克服常规OFDM的高峰均功率比（PAPR）问题，并提高抗长时延干扰的鲁棒性时间延迟。本文通过计算机仿真评估了频率选择瑞利衰落信道中OFDM / TDM的误码率（BER）性能。结果表明，与传统的OFDM相比，基于最小均方误差准则（MMSE-FDE）的频域均衡的使用可以显着提高BER性能，这是通过利用信道频率选择性同时降低PAPR或提高信道效率来实现的。长时间延迟的鲁棒性。还表明，通过降低设计参数，设计用于降低PAPR的OFDM / TDM性能可以桥接传统的OFDM和单载波（SC）传输。

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