Evaluation of WCP-COQAM, GFDM-OQAM and FBMC-OQAM for industrial wireless communications with Cognitive Radio

Aitor Lizeaga, M. Mendicute, P. Rodriguez, I. Val
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引用次数: 12

Abstract

The main challenges for current industrial wireless solutions are the stringent real-time requirements of industrial automation applications and the harsh propagation channel conditions in this kind of scenarios. Most of the current industrial wireless communications are based on existing standards like IEEE 802.11, IEEE 802.15.1 or IEEE 802.15.4 and additionally proprietary protocol extensions are applied over them. These communication systems cover a wide range of industrial applications but they lack robustness when it comes to tight real-time requirements for factory automation. Hence, new schemes for the physical layer, along with new media access techniques, for industrial wireless communications must be proposed. Among the upcoming technologies, modulation candidates for 5G and cognitive radio might be promising solutions. In this article we analyse FBMC-OQAM, GFDM-OQAM and WCP-COQAM modulation candidates for 5G in terms of bit error rate, power spectral density and spectral efficiency over highly dispersive channels. From this analysis, on the one hand, we assess the suitability of these modulation systems for industrial wireless communications based on cognitive radio. On the other hand, we provide additional details about how windowing affects the protection against highly dispersive multipath channels and the spectral efficiency in WCP-COQAM.
基于认知无线电的工业无线通信WCP-COQAM、GFDM-OQAM和FBMC-OQAM的评估
当前工业无线解决方案面临的主要挑战是工业自动化应用的严格实时性要求以及这种场景下恶劣的传播信道条件。目前大多数工业无线通信都是基于现有的标准,如IEEE 802.11、IEEE 802.15.1或IEEE 802.15.4,并在其上应用了额外的专有协议扩展。这些通信系统覆盖了广泛的工业应用,但当涉及到工厂自动化的严格实时要求时,它们缺乏健壮性。因此,必须提出物理层的新方案,以及工业无线通信的新媒体访问技术。在即将到来的技术中,5G和认知无线电的调制候选方案可能是有希望的解决方案。在本文中,我们分析了FBMC-OQAM、GFDM-OQAM和WCP-COQAM在高色散信道上的误码率、功率谱密度和频谱效率。从这个分析中,我们一方面评估了这些调制系统在基于认知无线电的工业无线通信中的适用性。另一方面,我们提供了关于窗口如何影响WCP-COQAM对高色散多径信道的保护和频谱效率的额外细节。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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