Reliability Analysis of Large Intelligent Surfaces (LISs): Rate Distribution and Outage Probability
Reliability Analysis of Large Intelligent Surfaces (LISs): Rate Distribution and Outage Probability
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DOI：
10.1109/lwc.2019.2935190
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发表时间：
2019-12-01
影响因子：
6.3
通讯作者：
Choi, Sooyong
中科院分区：
文献类型：
--
作者：
Jung, Minchae;Saad, Walid;Choi, Sooyong
大型智能表面（LISs）最近被提出作为一种有效的无线通信解决方案，可以利用部署在整个人造结构（如墙壁）上的天线阵列。LIS可以提供空间密集和可靠的通信，使所需的无线信道能够展示完美的视距。然而，作为评估系统可靠性的重要性能指标，LIS的中断概率仍然没有得到表征。本文对LIS系统的上行和速率分布进行了渐近分析。根据所导出的渐近分布，导出了所考虑的LIS系统的停电概率。仿真结果表明，在大量天线和设备存在的情况下，所提出的渐近分析结果与精确互信息非常吻合。
Large intelligent surfaces (LISs) have been recently proposed as an effective wireless communication solution that can leverage antenna arrays deployed on the entirety of man-made structures such as walls. An LIS can provide space-intensive and reliable communication, enabling the desired wireless channel to exhibit a perfect line-of-sight. However, the outage probability of LIS, which is an important performance metric to evaluate the system reliability, remains uncharacterized. In this letter, the distribution of uplink sum-rate is asymptotically analyzed for an LIS system. Given the derived asymptotic distribution, the outage probability is derived for the considered LIS system. Simulation results show that the results of the proposed asymptotic analyses are in close agreement to the exact mutual information in the presence of a large number of antennas and devices.