Boosting 5G mm-Wave IAB Reliability with Reconfigurable Intelligent Surfaces
Boosting 5G mm-Wave IAB Reliability with Reconfigurable Intelligent Surfaces
复制标题
通过可重构智能表面提高 5G 毫米波 IAB 可靠性
DOI：
10.1109/wcnc51071.2022.9771934
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Danilo De Donno
中科院分区：
文献类型：
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作者：
Paolo Fiore;Eugenio Moro;I. Filippini;A. Capone;Danilo De Donno
将毫米波频谱引入5G NR有望为未来的移动的无线网络带来前所未有的数据吞吐量，但也带来了一些挑战。网络致密化已被提议作为提高RAN弹性的可行解决方案，并且新引入的集成接入和回程（IAB）被认为是一种关键的使能技术，具有针对此类密集部署的引人注目的成本降低机会。可重构智能表面（RIS）最近获得了极大的普及，因为它们可以通过电磁波操纵创建智能无线电环境，并表现为廉价的无源中继。然而，目前尚不清楚该技术在大型RAN部署中可以发挥什么作用。在填补这一空白的范围内，我们研究了使用IAB和RIS的现实毫米波RAN部署的阻塞弹性。RAN布局已经优化了一种新的毫米波规划工具的基础上MILP制定。数值结果表明，如何增加RISs IAB部署可以提供高阻塞阻力水平，同时显着降低整体网络规划成本。
The introduction of the mm-Wave spectrum into 5G NR promises to bring about unprecedented data throughput to future mobile wireless networks but comes with several challenges. Network densification has been proposed as a viable solution to increase RAN resilience, and the newly introduced Integrated-Access-and-Backhaul (IAB) is considered a key enabling technology with compelling cost-reducing opportunities for such dense deployments. Reconfigurable Intelligent Surfaces (RIS) have recently gained extreme popularity as they can create Smart Radio Environments by EM wave manipulation and behave as inexpensive passive relays. However, it is not yet clear what role this technology can play in a large RAN deployment. With the scope of filling this gap, we study the blockage resilience of realistic mm-Wave RAN deployments that use IAB and RIS. The RAN layouts have been optimised by means of a novel mm-Wave planning tool based on MILP formulation. Numerical results show how adding RISs to IAB deployments can provide high blockage resistance levels while significantly reducing the overall network planning cost.