论文标题
无线通信的智能反射表面的性能分析
Performance Analysis of Intelligent Reflective Surfaces for Wireless Communication
论文作者
论文摘要
提出了针对无线通信的智能反射表面（IRS）的基本性能界限的统计表征。为此，以封闭形式得出了中断概率，平均符号误差概率和可实现的利率界限。由于高信噪比（SNR）制度的渐近分析，得出了可实现的多样性顺序。因此，我们表明，只有可控的相调整只能实现IRS中嵌入的被动反射元件数量的多样性增益。因此，IRS具有巨大的潜力，可以通过智能控制传播通道而无需使用其他主动射频链来提高无线性能。
A statistical characterization of the fundamental performance bounds of an intelligent reflective surface (IRS) intended for aiding wireless communications is presented. To this end, the outage probability, average symbol error probability, and achievable rate bounds are derived in closed-form. By virtue of asymptotic analysis in the high signal-to-noise ratio (SNR) regime, the achievable diversity order is derived. Thereby, we show that a diversity gain in the order of the number of passive reflective elements embedded within the IRS can be achieved with only controllable phase adjustments. Thus, IRS has a great potential of boosting the wireless performance by intelligently controlling the propagation channels without employing additional active radio frequency chains.
