Millimeter-wave (mmWave) frequency bands, which offer abundant underutilized spectral resources, have been explored and exploited in the past several years to meet the requirements of emerging wireless services highlighted by high data rates, ultrareliability, and ultralow delivery latency. Yet, the unique characteristics of mmWave, e.g., continuous wide bandwidth, large path, and penetration losses, along with hardware constraints, call for innovative technologies for mmWave communication. Recently, an extensive amount of work on mmWave communication has been carried out by researchers and practitioners from both academia and industry, and various technologies have been developed for mmWave communication systems to fulfill the full potential of mmWave frequency bands. In this article, we present a comprehensive survey of the standardization of mmWave communication, the latest progress and outcomes of the research on mmWave communication technologies, and the emerging applications of mmWave communication. In particular, we provide a timely and in-depth summary of the state-of-the-art technology specifications of mmWave communication with an emphasis on the physical (PHY) layer. Then, we elaborate on a number of well-established or promising antenna architectures in mmWave communication systems and investigate the enabling PHY layer transmission technologies. Finally, we show some existing and emerging applications of mmWave communication and discuss the potential open research issues.

中文翻译：

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毫米波通信综述：物理层技术规范和支持传输技术


毫米波 (mmWave) 频段提供了丰富的未充分利用的频谱资源，在过去几年中得到了探索和利用，以满足新兴无线服务的高数据速率、超可靠性和超低传输延迟的要求。然而，毫米波的独特特性，例如连续宽带宽、大路径和穿透损耗，以及硬件限制，需要毫米波通信的创新技术。近年来，学术界和工业界的研究人员和从业者在毫米波通信方面开展了大量工作，并为毫米波通信系统开发了各种技术，以充分发挥毫米波频段的潜力。在本文中，我们全面综述了毫米波通信的标准化、毫米波通信技术研究的最新进展和成果以及毫米波通信的新兴应用。特别是，我们及时、深入地总结了毫米波通信的最先进技术规范，重点是物理 (PHY) 层。然后，我们详细阐述了毫米波通信系统中许多成熟或有前途的天线架构，并研究了支持的 PHY 层传输技术。最后，我们展示了毫米波通信的一些现有和新兴应用，并讨论了潜在的开放研究问题。