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arXiv 2102.07252cs.NIcs.ITcs.LGmath.IT
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基于遗传算法的综合接入回程网络拓扑优化与路由

On Topology Optimization and Routing in Integrated Access and Backhaul Networks: A Genetic Algorithm-based Approach

Chalmers University of Technology(查尔姆斯理工大学);Ericsson research(爱立信研究);King Abdullah University of Science and Technology (KAUST)(沙特国王科技大学(KAUST))

Charitha Madapatha, Behrooz Makki, Ajmal Muhammad, Erik Dahlman, Mohamed-Slim Alouini, Tommy Svensson

摘要:

在本文中,我们研究了集成接入和回程(IAB)网络中的拓扑优化和路由问题,这是发展5G网络的有前途的技术之一。我们从不同的角度研究这个问题。我们开发了高效的遗传算法为基础的计划IAB节点的位置和非IAB回程链路分布,并评估绕过时间阻塞路由的效果。在这里,集中在基于毫米波的通信,我们研究的服务覆盖概率,定义为事件的概率,用户设备(UE)的最低速率要求得到满足。此外,我们还研究了不同参数如天线增益、阻塞和树叶对系统性能的影响。最后,我们总结了最近的Rel-16以及即将到来的Rel-17 3GPP关于IAB网络中路由的讨论,并讨论了实现基于网格的IAB网络的主要挑战。正如我们所展示的那样,通过适当的网络拓扑结构,IAB是实现5G及以后所需的网络致密化的一种有吸引力的方法。

英文摘要:

In this paper, we study the problem of topology optimization and routing in integrated access and backhaul (IAB) networks, as one of the promising techniques for evolving 5G networks. We study the problem from different perspectives. We develop efficient genetic algorithm-based schemes for both IAB node placement and non-IAB backhaul link distribution, and evaluate the effect of routing on bypassing temporal blockages. Here, concentrating on millimeter wave-based communications, we study the service coverage probability, defined as the probability of the event that the user equipments' (UEs) minimum rate requirements are satisfied. Moreover, we study the effect of different parameters such as the antenna gain, blockage and tree foliage on the system performance. Finally, we summarize the recent Rel-16 as well as the upcoming Rel-17 3GPP discussions on routing in IAB networks, and discuss the main challenges for enabling mesh-based IAB networks. As we show, with a proper network topology, IAB is an attractive approach to enable the network densification required by 5G and beyond.

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。

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