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arXiv 2410.02434cs.NIcs.SYeess.SY
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基于负载均衡的集成接入与回传网络拓扑自适应

Load Balancing-based Topology Adaptation for Integrated Access and Backhaul Networks

Raul Victor de O. Paiva, Fco. Italo G. Carvalho, Fco. Rafael M. Lima, Victor F. Monteiro, Diego A. Sousa, Darlan C. Moreira, Tarcisio F. Maciel, Behrooz Makki

AI总结:

针对移动IAB网络中拓扑自适应仅依赖链路质量可能导致负载不均的问题,提出一种同时考虑回传链路质量和业务负载的负载均衡算法,在不显著损害行人QoS的前提下提升乘客上下行最差连接吞吐量。

摘要:

集成接入与回传(IAB)技术是一种灵活的网络密集化解决方案。IAB节点也可以部署在移动节点(如公交车和火车)中,即移动IAB(mIAB)。由于mIAB节点可以在覆盖区域内移动,mIAB节点与其父宏基站(BS),即IAB宿主(IAB donor)之间的连接有时需要改变,以保持可接受的回传链路,这就是所谓的拓扑自适应(TA)。从一个IAB宿主切换到另一个IAB宿主可能会强烈影响系统负载分布,可能由于缺乏无线资源而导致回传服务不令人满意。基于此,TA应同时考虑回传链路质量和业务负载。在这项工作中,我们提出了一种基于TA的IAB网络负载均衡算法,并将其与仅基于参考信号接收功率(RSRP)触发TA的方法进行了比较。结果表明,我们提出的算法改善了乘客在上行链路(UL)中的最差连接吞吐量,并且在下行链路(DL)中也有较温和的改善,同时没有显著损害行人的服务质量(QoS)。

英文摘要:

Integrated access and backhaul (IAB) technology is a flexible solution for network densification. IAB nodes can also be deployed in moving nodes such as buses and trains, i.e., mobile IAB (mIAB). As mIAB nodes can move around the coverage area, the connection between mIAB nodes and their parent macro base stations (BSs), IAB donor, is sometimes required to change in order to keep an acceptable backhaul link, the so called topology adaptation (TA). The change from one IAB donor to another may strongly impact the system load distribution, possibly causing unsatisfactory backhaul service due to the lack of radio resources. Based on this, TA should consider both backhaul link quality and traffic load. In this work, we propose a load balancing algorithm based on TA for IAB networks, and compare it with an approach in which TA is triggered based on reference signal received power (RSRP) only. The results show that our proposed algorithm improves the passengers worst connections throughput in uplink (UL) and, more modestly, also in downlink (DL), without impairing the pedestrian quality of service (QoS) significantly.

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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