具有高频率选择性信道的FBMC的DFE/THP对偶性
DFE/THP duality for FBMC with highly frequency selective channels
摘要：
基于滤波器组的具有偏移QAM系统的多载波（FBMC/OQAM）是未来第五代（5G）无线标准的波形的强有力候选者。与其它多载波方案相比，这些系统可以实现最大的频谱效率，特别是在高频率选择性传播条件下。在这种情况下，需要在接收器或发射器侧的每个子载波中插入多抽头、分数间隔的均衡器或预编码器，以补偿符号间干扰（ISI）和载波间干扰（ICI）。在本文中，我们提出了一种新的Tomlinson-Harashima预编码器（THP）的设计FBMC/OQAM的基础上的均方误差（MSE）的最小均方误差（MMSE）设计的判决反馈均衡器（DFE）的对偶。
英文摘要：
Filter bank based multicarrier with Offset-QAM systems (FBMC/OQAM) are strong candidates for the waveform of future 5-th generation (5G) wireless standards. These systems can achieve maximum spectral efficiency compared to other multicarrier schemes, particularly in highly frequency selective propagation conditions. In this case a multi-tap, fractionally spaced equalizer or precoder needs to be inserted in each subcarrier at the receiver or transmitter side to compensate inter-symbol interference (ISI) and inter-carrier interference (ICI). In this paper we propose a new Tomlinson-Harashima precoder (THP) design for FBMC/OQAM based on the mean squared error (MSE) duality from a minimum MSE (MMSE) designed decision feedback equalizer (DFE).
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