arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2010.00519cs.ITeess.SPmath.IT
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使用QAM信令的智能可重构基于表面的无线通信性能

Performance of Intelligent Reconfigurable Surface-Based Wireless Communications Using QAM Signaling

Dharmendra Dixit, Kishor Chandra Joshi, Sanjeev Sharma

摘要:

智能可重构表面(IRS)被视为6G无线网络的一项有前途的技术。IRS可以重新配置无线传播环境,从而显著改善无线通信的性能。在本文中,我们分析了带宽有效的正交幅度调制(QAM)技术在瑞利衰落信道下的IRS辅助无线通信的性能。推导了矩形QAM、方形QAM和交叉QAM方案的通用平均符号出错率(ASER)的新的封闭形式表达式。此外,简化表达式的ASER为低信噪比(SNR)和高SNR区域,这是有用的分析提供见解。我们全面分析了调制参数和所采用的IRS元件的数量的影响。我们还通过模拟验证了我们的理论结果。我们的研究结果表明,采用IRS显着提高ASER性能相比,加性高斯白噪声信道在低信噪比制度。因此,IRS辅助的无线通信可以是用于诸如物联网(IoT)的各种低功率通信应用的有希望的候选者。

英文摘要:

Intelligent reconfigurable surface (IRS) is being seen as a promising technology for 6G wireless networks. The IRS can reconfigure the wireless propagation environment, which results in significant performance improvement of wireless communications. In this paper, we analyze the performance of bandwidth-efficient quadrature amplitude modulation (QAM) techniques for IRS-assisted wireless communications over Rayleigh fading channels. New closed-form expressions of the generic average symbol error rate (ASER) for rectangular QAM, square QAM and cross QAM schemes are derived. Moreover, simplified expressions of the ASER for low signal-to-noise-ratio (SNR) and high SNR regions are also presented, which are useful to provide insights analytically. We comprehensively analyze the impact of modulation parameters and the number of IRS elements employed. We also verify our theoretical results through simulations. Our results demonstrate that employing IRS significantly enhances the ASER performance in comparison to additive white Gaussian noise channel at a low SNR regime. Thus, IRS-assisted wireless communications can be a promising candidate for various low powered communication applications such as internet-of-things (IoT).

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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