使用可重构智能表面的5G/6 G X重中断补偿
X-haul Outage Compensation in 5G/6G Using Reconfigurable Intelligent Surfaces
摘要：
5G网络运营商考虑密集部署小型基站（SBS）以增加网络覆盖和容量。因此，运营商面临着X运输的挑战，即，回程或前传，它们到核心网络的流量。此外，SBS致密化将增加这些X-haul链路故障的可能性。为了解决这个问题，提出了一种在可重构智能表面（RIS）的帮助下的X-haul中断补偿方案，以减轻或至少减轻X-haul故障的影响。RIS是一种能够提高无线网络性能的新技术。在本文中，我们提出并评估了一个X-haul中断补偿方案的基础上放置了一些RIS面板在预先规划的位置，以减轻影响的X-haul故障。该评估使用低于和超过6 GHz的频率进行。基于我们的分析结果，建议的RIS计划表明，在一定条件下，放置足够数量的RIS元素接近失败的SBS可以帮助获得相同的X-长途速率发生故障之前。此外，我们表明，对于高X-长途频谱密度，具有一定数量的元素的RIS辅助传输可以比视线和非视线传输更节能。最后，该系统的能量效率的解决与无RIS，和RIS反射元件的最佳数量的推导。
英文摘要：
5G network operators consider the dense deployment of small base-stations (SBSs) to increase network coverage and capacity. Hence, operators face the challenge of X-hauling, i.e., backhauling or fronthauling, their traffic to the core network. Also, SBSs densification will increase the possibility of failure of these X-haul links. To cope with this problem, an X-haul outage compensation scheme with the assistance of Reconfigurable Intelligent Surfaces (RIS) is proposed to mitigate or at least alleviate the effect of X-haul failure. The RIS is a newly adopted technology that is able to improve the performance of wireless networks. In this paper, we present and evaluate an X-haul outage compensation scheme based on placing a number of RIS panels in pre-planned locations to mitigate the effect of X-haul failure. This evaluation is done using frequencies below and beyond 6 GHz. Based on our analytical results, the proposed RIS scheme shows that placing a sufficient number of RIS elements in proximity to the failed SBS under certain conditions can help acquire the same X-haul rate before the occurrence of the failure. Also, we show that for high X-haul spectral density, the RIS-assisted transmission with a certain number of elements can be more energy-efficient than line-of-sight and non-line-of-sight transmissions. Finally, the system's energy efficiency is addressed with and without RIS, and the optimal number of RIS reflecting elements is derived.
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。
