Filter Bank Multicarrier Modulation Schemes for Future Mobile Communications
Filter Bank Multicarrier Modulation Schemes for Future Mobile Communications
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DOI：
10.1109/jsac.2017.2710022
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发表时间：
2017-08-01
影响因子：
16.4
通讯作者：
Rupp, Markus
中科院分区：
文献类型：
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作者：
Nissel, Ronald;Schwarz, Stefan;Rupp, Markus
未来的无线系统将以大量可能的使用案例为特征。这需要灵活地分配可用的时频资源，这在传统的正交频分多路复用(Ofdm)中是困难的。因此，需要对ofdm进行修改，例如加窗或滤波。或者，我们可以采用不同的调制方案，例如滤波器组多载波(FBMC)。在本文中，我们提供了一个统一的框架、讨论和性能评估，并将其与基于ofdm的方案进行了比较。我们的研究不仅基于仿真，而且通过真实世界的试验台测量和试验得到证实，其中我们表明，多天线和信道估计，与FBMC相关的两个主要挑战，可以被有效地处理。此外，我们还推导了双选择性信道中的信干比的闭合解，并表明在许多实际情况下，单抽头均衡器是足够的。可下载的MatLab代码支持我们结果的重现性。
Future wireless systems will be characterized by a large range of possible uses cases. This requires a flexible allocation of the available time-frequency resources, which is difficult in conventional orthogonal frequency division multiplexing (OFDM). Thus, modifications of OFDM, such as windowing or filtering, become necessary. Alternatively, we can employ a different modulation scheme, such as filter bank multi-carrier (FBMC). In this paper, we provide a unifying framework, discussion, and performance evaluation of FBMC and compare it with OFDM-based schemes. Our investigations are not only based on simulations, but are substantiated by real-world testbed measurements and trials, where we show that multiple antennas and channel estimation, two of the main challenges associated with FBMC, can be efficiently dealt with. In addition, we derive closed-form solutions for the signal-to- interference ratio in doubly-selective channels and show that in many practical cases, one-tap equalizers are sufficient. A downloadable MATLAB code supports reproducibility of our results.