Movable Antenna-Enabled Co-Frequency Co-Time Full-Duplex Wireless Communication

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS IEEE Communications Letters Pub Date : 2024-09-02 DOI:10.1109/LCOMM.2024.3453296

Jingze Ding;Zijian Zhou;Wenyao Li;Chenbo Wang;Lifeng Lin;Bingli Jiao

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Abstract

Movable antenna (MA) provides an innovative way to arrange antennas that can contribute to improved signal quality and more effective interference management. This technology is especially beneficial for co-frequency co-time full-duplex (CCFD) wireless communication, which struggles with self-interference (SI) that usually overpowers the desired incoming signals. By dynamically repositioning transmit/receive antennas, we can mitigate the SI and enhance the reception of incoming signals. Thus, this letter proposes a novel MA-enabled point-to-point CCFD system and formulates the minimum achievable rate of two CCFD terminals. To maximize the minimum achievable rate and determine the positions of MAs, we introduce a solution based on projected particle swarm optimization (PPSO), which can circumvent common suboptimal positioning issues. Moreover, simulation results reveal that the PPSO method leads to better performance compared to the conventional alternating position optimization (APO). The results also demonstrate that an MA-enabled CCFD system outperforms the one using fixed-position antennas (FPAs).

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可移动天线支持同频同时全双工无线通信

可移动天线（MA）提供了一种创新的天线布置方式，有助于提高信号质量和更有效地管理干扰。这种技术尤其适用于同频同时全双工（CCFD）无线通信，因为这种通信会受到自干扰（SI）的困扰，而自干扰通常会盖住所需的传入信号。通过动态调整发射/接收天线的位置，我们可以减轻自干扰，增强对传入信号的接收。因此，本文提出了一种新颖的支持 MA 的点对点 CCFD 系统，并提出了两个 CCFD 终端的最小可达速率。为了最大限度地提高最小可达速率并确定 MA 的位置，我们引入了一种基于投影粒子群优化（PPSO）的解决方案，它可以规避常见的次优定位问题。此外，仿真结果表明，与传统的交替位置优化（APO）相比，PPSO 方法具有更好的性能。结果还表明，支持 MA 的 CCFD 系统优于使用固定位置天线 (FPA) 的系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.

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