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A Survey on DCSK-Based Communication Systems and Their Application to UWB Scenarios

机译：基于DCSK的通信系统及其在UWB场景中的应用研究

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摘要

In the past two decades, chaotic modulations have drawn a great deal of attention in low-power and low-complexity wireless communication applications due to their excellent anti-fading and anti-intercept capabilities. Of particular interest is the differential chaos shift keying (DCSK), which is considered as a very promising chaotic modulation scheme that achieves not only good error performance, but also low implementation complexity. In this treatise, we provide an insightful survey on the state-of-the-art research in DCSK-based communication systems through an extensive open literature search. In doing so, we firstly review the principles of DCSK modulation and the significant milestones since its inception. Subsequently, we introduce meritorious variants of DCSK, all of which can outperform the original one in certain aspects. We also present the joint design guidelines when combining DCSK with other critical techniques, e.g., error-correction coding and cooperative communication, in wireless communications under both single-user and multiaccess scenarios. Besides, we summarize research progress in the application of DCSK-based communication systems to ultra-wideband scenarios and their corresponding advantages. Specifically, we restrict our attention to the relevant modulation and system designs, as well as their performance-analysis methodologies. This survey aims not only to allow researchers understanding the development and current status of DCSK-based communication systems, but also to inspire further research in this area.
机译：在过去的二十年中，由于其出色的抗衰落和抗拦截能力，混沌调制在低功率和低复杂度的无线通信应用中引起了广泛的关注。特别令人关注的是差分混沌移位键控（DCSK），它被认为是一种非常有前途的混沌调制方案，不仅可以实现良好的错误性能，而且实现复杂度也较低。在本论文中，我们通过广泛的开放文献搜索，对基于DCSK的通信系统的最新研究提供了有见地的调查。为此，我们首先回顾一下DCSK调制的原理以及自其诞生以来的重要里程碑。随后，我们介绍了出色的DCSK变体，所有这些变体在某些方面都可以胜过原始的DCSK。在单用户和多址情况下的无线通信中，我们还将DCSK与其他关键技术（例如纠错编码和协作通信）结合时的联合设计指南。此外，我们总结了基于DCSK的通信系统在超宽带场景中的应用研究进展及其相应的优势。具体而言，我们将注意力集中在相关的调制和系统设计及其性能分析方法上。这项调查不仅旨在让研究人员了解基于DCSK的通信系统的发展和现状，而且可以激发在该领域的进一步研究。

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