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An overlap S&C method for OFDM synchronization

机译:OFDM同步的重叠S&C方法

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References(5) OFDM system divides a wideband transmission bandwidth into several overlapped narrowband subcarriers to avoid the serious frequency selective fading problem. However, if Timing Offset (TO) and Carrier Frequency Offset (CFO) exist between the Transmitter (Tx) and Receiver (Rx), OFDM system will suffer the Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI) that degrade the system performance dramatically. In this paper, we propose a simple modification of the S&C method. We adopt the overlap concept to reduce the plateau problem. Simulation results show that with this simple modification, it can improve the timing synchronization performance of the S&C method greatly.
机译:参考文献(5)OFDM系统将宽带传输带宽分为几个重叠的窄带子载波,以避免严重的频率选择性衰落问题。但是,如果在发射机(Tx)和接收机(Rx)之间存在定时偏移(TO)和载波频率偏移(CFO),则OFDM系统将遭受符号间干扰(ISI)和载波间干扰(ICI)的恶化系统性能显着提高。在本文中,我们提出了对S&C方法的简单修改。我们采用重叠概念来减少平稳问题。仿真结果表明,通过这种简单的修改,可以大大提高S&C方法的定时同步性能。

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