Sustainable Multi-User Communication with Reconfigurable Intelligent Surfaces in 5G Wireless Networks and Beyond
Sustainable Multi-User Communication with Reconfigurable Intelligent Surfaces in 5G Wireless Networks and Beyond
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DOI：
10.23919/eucap53622.2022.9769001
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发表时间：
2022-03
期刊：
影响因子：
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通讯作者：
Hamidreza Taghvaee;S. Terranova;Neekar M Mohammed;G. Gradoni
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文献类型：
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作者：
Hamidreza Taghvaee;S. Terranova;Neekar M Mohammed;G. Gradoni
可重构智能表面显示出巨大的潜力，为无线通信提供显着的性能改善。低成本、低功耗、轻量化和灵活部署使其非常适合集成到5G移动的网络基础设施中。然而，多径衰落干扰和辐射损耗的问题在毫米波频率处突出。为了实现大规模连接和低延迟通信，人们应该解决并最终利用现实生活中无线传播信道的随机性。为了实现多用户设备通信广播，在多个波束上实现同时波束成形是至关重要的。本文提供了一种通过可重构智能表面控制传播信道的策略，并生成多个笔形波束，用于在毫米波频率下进行并发用户访问。与同时进行幅度和相位重构相比，该技术只需要相位编码就可以动态地设计多波束形成。所提出的技术创建任意数量的波束，这些波束在宽频带中是稳定的。
Reconfigurable intelligent surfaces show huge potential to provide significant performance improvement for wireless communications. Low cost and power consumption, lightweight, and flexible deployment make them perfect for integration within the 5G mobile network infrastructure. However, the problems of multipath fading interference and radiation losses are prominent at mmWave frequencies. To enable massive connectivity and low-latency communications, one should tackle and eventually exploit the randomness of the real-life wireless propagation channels. In order to enable multi-User Equipment communication broadcasting, achieving simultaneous beamforming on multiple beams is of paramount importance. This paper provides a strategy to control the propagation channel via reconfigurable intelligent surfaces and generate multiple pencil beams for concurrent user access at mmWave frequencies. Compared to simultaneous amplitude and phase surface reconfiguration, this technique requires only phase coding to engineer multi-beamforming dynamically. The proposed technique creates an arbitrary number of beams that are stable among a wide frequency band.