On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications
On the m-CAP Performance with Different Pulse Shaping Filters Parameters for Visible Light Communications
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可见光通信中不同脉冲整形滤波器参数的 m-CAP 性能
DOI：
10.1109/jphot.2017.2749203
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发表时间：
2017
影响因子：
2.4
通讯作者：
Zabih Ghassemlooy
中科院分区：
文献类型：
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作者：
P. Chvojka;K. Werfli;S. Zvánovec;P. Haigh;V. Vacek;P. Dvořák;P. Pesek;Zabih Ghassemlooy
在脉冲成形滤波器中，由于硬件资源有限，在实现实时系统时，决定整体性能的参数（例如滚降因子和符号跨度）非常重要。在本文中，我们实验研究了多波段无载波幅度和相位（<italic>m-CAP</italic>）可见光通信（VLC）系统采用这种滤波器，并评估了一系列滤波器长度的链路性能，并显示系统数据速率（或频谱效率）和计算复杂度之间的关系。我们发现，低阶的<italic>m-CAP</italic>可以提供与高阶系统相同的系统性能，同时提供低得多的计算复杂度。通过优化滤波器参数和阶数m的<italic>m-CAP</italic>VLC链路，我们实现了最大的改善，在数据速率和带宽效率的9.69%和40.43%，分别相比，2-和8-CAP。我们还表明，与<inline-formula><tex-math notation="LaTeX">$ m\geq 6$</tex-math></inline-formula>的<italic>m</italic>-CAP VLC链路可以设计有相同的滤波器参数，以展示与低阶系统相比，同时具有最高数据速率和频谱效率的链路。
In pulse shaping filters, parameters such as the roll-off factor and the symbol span, which determine the overall performance, are of great importance when implementing a real-time system due to limited hardware resources. In this paper, we experimentally investigate a multiband carrier-less amplitude and phase (<italic>m</italic>-CAP) visible light communications (VLC) system employing such filters and assess the link performance for a range of filter lengths and show the relationship between the system data rate (or spectral efficiency) and computational complexity. We show that lower order <italic>m</italic>-CAP can offer the same system performance as higher order systems while offering much lower computational complexity. By optimizing the filter parameters and the order m of an <italic>m</italic>-CAP VLC link, we achieve the largest improvement in the data rate and bandwidth efficiency of 9.69% and 40.43%, respectively, when compared with 2- and 8-CAP. We also show that the <italic>m</italic>-CAP VLC link with <inline-formula><tex-math notation="LaTeX">$ m\geq 6$</tex-math></inline-formula> can be designed with the same filter parameters to demonstrate a link with both the highest data rate and spectral efficiency simultaneously in contrast to lower order systems.
用于带限可见光通信的可变 m-CAP
DOI：
--
发表时间：
2017
期刊：
--
影响因子：
--
作者：
Chvojka P
通讯作者：
Chvojka P