SIMRP：利用 RIS 和移相器网络缓解自干扰

arXiv - EE - Signal Processing Pub Date : 2024-09-13 DOI:arxiv-2409.08600

Zhang Wei, Chen Ding, Bin Zhou, Yi Jiang, Zhiyong Bu

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引用次数: 0

摘要

同地发射机造成的强烈自干扰是实现带内全双工（IBFD）系统的瓶颈。如果不加以充分缓解，强干扰会使接收器的模数转换器（ADC）饱和，从而使数字处理失效。本文考虑利用可重构智能表面（RIS）和接收（Rx）移相器网络（PSN），通过联合优化它们的相位来缓解强自干扰。这种方法被命名为利用 RIS 和 PSN 缓解自干扰（SIMRP），它能有效抑制自干扰，避免 ADC 饱和，从而提高通信系统的总和速率性能。

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SIMRP: Self-Interference Mitigation Using RIS and Phase Shifter Network

Strong self-interference due to the co-located transmitter is the bottleneck for implementing an in-band full-duplex (IBFD) system. If not adequately mitigated, the strong interference can saturate the receiver's analog-digital converters (ADCs) and hence void the digital processing. This paper considers utilizing a reconfigurable intelligent surface (RIS), together with a receiving (Rx) phase shifter network (PSN), to mitigate the strong self-interference through jointly optimizing their phases. This method, named self-interference mitigation using RIS and PSN (SIMRP), can suppress self-interference to avoid ADC saturation effectively and therefore improve the sum rate performance of communication systems, as verified by the simulation studies.

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arXiv - EE - Signal Processing

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