论文标题
通过一位相调整的智能反射表面辅助通信的研究
Study of Intelligent Reflective Surface Assisted Communications with One-bit Phase Adjustments
论文作者
论文摘要
我们分析了通过位于源和目的地远处的智能反射表面（IRS）辅助的通信链接的性能。假定传输和接收设备之间存在直接链接。考虑到IRS的完美和不完美的相调整。对于完美的相构型，我们以封闭形式得出中断概率的近似表达式。对于不完美的相构型，我们假设IRS的每个元素都有一个位相移（0°，180°），并且以积分的形式获得了中断概率的表达式。我们的配方接受了确切的渐近（高SNR）分析，从中我们获得了有或没有相误差的系统的多样性顺序。我们分别显示它们是n + 1和（n + 3）/2。数值结果证实了理论分析，并验证报告的结果比基于中心极限定理（CLT）的方法更准确。
We analyse the performance of a communication link assisted by an intelligent reflective surface (IRS) positioned in the far field of both the source and the destination. A direct link between the transmitting and receiving devices is assumed to exist. Perfect and imperfect phase adjustments at the IRS are considered. For the perfect phase configuration, we derive an approximate expression for the outage probability in closed form. For the imperfect phase configuration, we assume that each element of the IRS has a one-bit phase shifter (0°, 180°) and an expression for the outage probability is obtained in the form of an integral. Our formulation admits an exact asymptotic (high SNR) analysis, from which we obtain the diversity orders for systems with and without phase errors. We show these are N + 1 and (N + 3)/2, respectively. Numerical results confirm the theoretical analysis and verify that the reported results are more accurate than methods based on the central limit theorem (CLT).
