arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2205.09409eess.SPcs.ITcs.SImath.IT
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联合通信与感知:MIMO的模型与应用潜力

Joint Communication and Sensing: Models and Potential of Using MIMO

Xinran Fang, Wei Feng, Yunfei Chen, Ning Ge, Yan Zhang

摘要:

第六代(6 G)网络被设想为集成通信和传感功能,以提高频谱效率(SE)并支持爆炸性的新应用。虽然无线通信和无线电传感的相似性为它们的结合奠定了基础,但它们之间仍然存在着相当大的不相容性。为了同时保证通信容量和感知精度,多输入多输出(MIMO)技术由于其独特的空间波束形成和波形整形能力而发挥着重要作用。然而,MIMO的配置也带来了高硬件成本、高功耗和高信号处理复杂度。如何有效地应用MIMO来实现平衡的通信和感知性能仍然是开放的。在这次调查中,我们讨论了联合通信和传感(JCAS)在MIMO的背景下。我们首先概述了MIMO在无线通信和雷达传感过程中的作用。然后,我们详细介绍了当前通信和传感共存和集成的进展。随后结合前沿技术讨论了三种新型JCAS MIMO模型,即,云随机接入网络(C-RAN)、无人机(UAV)和可重构智能表面(RIS)。从实际应用的角度出发,总结了MIMO在JCAS中的潜力和挑战,并提出了有前途的解决方案。受物联网(IoT)巨大潜力的启发,我们还在IoT场景中指定了JCAS,并讨论了将JCAS应用于IoT的独特性。最后,展望了在不久的将来,一个无处不在的、智能的、安全的JCAS网络的前景。

英文摘要:

The sixth-generation (6G) network is envisioned to integrate communication and sensing functions, so as to improve the spectrum efficiency (SE) and support explosive novel applications. Although the similarities of wireless communication and radio sensing lay the foundation for their combination, there is still considerable incompatible interest between them. To simultaneously guarantee the communication capacity and the sensing accuracy, the multiple-input and multiple-output (MIMO) technique plays an important role due to its unique capability of spatial beamforming and waveform shaping. However, the configuration of MIMO also brings high hardware cost, high power consumption, and high signal processing complexity. How to efficiently apply MIMO to achieve balanced communication and sensing performance is still open. In this survey, we discuss joint communication and sensing (JCAS) in the context of MIMO. We first outline the roles of MIMO in the process of wireless communication and radar sensing. Then, we present current advances in both communication and sensing coexistence and integration in detail. Three novel JCAS MIMO models are subsequently discussed by combining cutting-edge technologies, i.e., cloud random access networks (C-RANs), unmanned aerial vehicles (UAVs) and reconfigurable intelligent surfaces (RISs). Examined from the practical perspective, the potential and challenges of MIMO in JCAS are summarized, and promising solutions are provided. Motivated by the great potential of the Internet of Things (IoT), we also specify JCAS in IoT scenarios and discuss the uniqueness of applying JCAS to IoT. In the end, open issues are outlined to envisage a ubiquitous, intelligent and secure JCAS network in the near future.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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