FBMC and GFDM Interference Cancellation Schemes for FDR PHY Desi...

FBMC and GFDM Interference Cancellation Schemes for Flexible Digital Radio PHY Design 随着空白空间的开放，有效利用碎片频谱（尤其是电视空白空间）已成为研究的一个重要重点。 除了有效地使用频谱之外，还需要特别注意保持低带外辐射，以避免对诸如电视信号和无线麦克风之类的现有服务产生有害干扰。 因此，具有多载波调制方案的灵活数字无线电是唯一的解决方案。 在本文中，我们展示了两种创新的多载波系统的性能，滤波器组多载波（FBMC）和广义频分复用（GFDM）。 已经使用一种称为串行载波间干扰消除方案的简单干扰消除技术来改善GFDM系统的性能。 已经为FBMC实现了信道均衡技术。 With the opening up of white spaces, efficient use of the fragmented spectrum - TV white space in particular - has become an extremely important focus of research. Apart from efficient spectrum usage, special care needs to be taken to maintain low out-of-band radiation to avoid harmful interference to incumbent services like TV signals and wireless microphones. For this reason, a flexible digital radio with multicarrier modulation scheme is the only solution. In this paper, we show the performance of two innovative multicarrier systems, Filter Bank Multi Carrier (FBMC) and Generalized Frequency Division Multiplexing (GFDM). A simple interference cancellation technique called serial inter-carrier interference cancellation scheme has been used to improve performance of the GFDM system. Channel equalization techniques have been implemented for FBMC.