Multiband carrierless amplitude and phase index modulation,International Journal of Communication Systems

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Multiband carrierless amplitude and phase index modulation
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-10-05 , DOI: 10.1002/dac.4626
Rafael Puerta _{1,

2} , Luis Felipe Ariza Vesga ₃ , Daniel Jaramillo‐Ramirez ₂

Affiliation

As 5G standards continue to evolve, the need for communication systems with higher data rates is clear. However, the available bandwidth in the spectrum in most of the cases is limited and is not sufficient to satisfy future demands. Higher data rates drive the need for more efficient schemes to transmit information. Currently, there are different physical‐layer (PHY) technologies that enable increasing data rates with a limited bandwidth such as flexible multicarrier waveforms and channel coding schemes. Index modulation (IM), which uses alternative ways to transmit extra information compared to traditional communication systems, is an innovative PHY solution to increase capacity and spectral efficiency (SE). In this paper, a new IM scheme based on multicarrier quadrature amplitude modulation/carrierless amplitude phase (QAM/CAP) modulation is presented. The property used by this scheme is, provided a contiguous fixed bandwidth, the feasibility to transmit the same amount of data by transmitting different number of contiguous frequency bands by adjusting their bandwidths. To increase the SE, an extra degree of freedom is generated by dynamically changing the distribution of the frequency bands being transmitted, that is, the number of bands used and its bandwidths and subcarrier frequencies. Simulation results are presented to validate the feasibility of the proposed scheme.

中文翻译：

多频带无载波幅度和相位指数调制

随着5G标准的不断发展，对具有更高数据速率的通信系统的需求显而易见。但是，在大多数情况下，频谱中的可用带宽是有限的，不足以满足未来的需求。更高的数据速率促使人们需要更有效的方案来传输信息。当前，有多种不同的物理层（PHY）技术可以在有限的带宽内提高数据速率，例如灵活的多载波波形和信道编码方案。与传统通信系统相比，索引调制（IM）使用替代方式传输额外信息，是一种创新的PHY解决方案，可提高容量和频谱效率（SE）。在本文中，提出了一种基于多载波正交幅度调制/无载波幅度相位（QAM / CAP）调制的IM方案。通过提供连续的固定带宽，此方案使用的属性具有通过调整带宽来传输不同数量的连续频带来传输相同数量数据的可行性。为了增加SE，通过动态改变正在发送的频带的分布，即所使用的频带数及其带宽和子载波频率，来产生额外的自由度。仿真结果表明了该方案的可行性。通过调整不同数量的连续频带来传输相同数量的数据的可行性。为了增加SE，通过动态改变正在发送的频带的分布，即所使用的频带数及其带宽和子载波频率，来产生额外的自由度。仿真结果表明了该方案的可行性。通过调整不同数量的连续频带来传输相同数量的数据的可行性。为了增加SE，通过动态改变正在发送的频带的分布，即所使用的频带数及其带宽和子载波频率，来产生额外的自由度。仿真结果表明了该方案的可行性。

更新日期：2020-11-09

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