With the increasing demands in modern communications, the concepts of energy-efficient and low-cost processors have received a lot of attention from researchers in recent years. These cases are also taken into consideration in today’s high-speed and high-capacity communications (HSHCC), which is one of the requirements in new generation of wireless networks i.e., 6G. International telecommunication union’s (ITU) goal in wireless communications is to deliver higher data rates up to 10 Gbps, along with high spectral efficiency and advanced coverage. In multi-gigabit or terabit-per-second wireless communications, digital signal processing (DSP) faces significant challenges. Therefore, analog signal processing (ASP) and design methods based on it have gained a new importance recently. In today’s modern telecommunication systems, ASP is used in areas such as the design of analog-to-digital converter (ADC)-less and also DAC-less transceivers, beamforming, secure communication, deep learning (DL), neural network accelerators (ANN), real-time phasers-based applications, Internet of things (IoT), etc. In this research, we describe and classify the works done in this field. This paper presents a comprehensive review of the ASP concept, challenges, and outlooks in modern and smart communications to pave the path for academic and industrial researchers who aim to work in this area.

中文翻译：

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模拟信号处理在即将到来的电信系统中的作用：概念、挑战和前景

随着现代通信需求的不断增长，节能和低成本处理器的概念近年来受到了研究人员的广泛关注。当今的高速大容量通信（HSHCC）也考虑了这些情况，这是新一代无线网络（即6G）的要求之一。国际电信联盟 (ITU) 在无线通信方面的目标是提供高达 10 Gbps 的更高数据速率，以及高频谱效率和先进的覆盖范围。在每秒数千兆位或太位位的无线通信中，数字信号处理 (DSP) 面临着重大挑战。因此，模拟信号处理（ASP）和基于它的设计方法最近获得了新的重要性。在当今的现代电信系统中，ASP 用于无模数转换器 (ADC) 和无 DAC 收发器、波束成形、安全通信、深度学习 (DL)、神经网络加速器 (ANN) 的设计等领域。 ）、基于实时相位器的应用、物联网（IoT）等。在本研究中，我们描述并分类了在该领域所做的工作。本文对现代智能通信中的 ASP 概念、挑战和前景进行了全面回顾，为致力于该领域工作的学术和工业研究人员铺平了道路。