In an integrated access and backhaul (lAB) net-works with multihop characteristics, congestion may occur in the middle node during uplink transmission. Severe congestion will cause data packet loss and long user waiting delays, which causes the network performance dropping. A suitable congestion control scheme effectively alleviate node congestion when congestion occurs and prevent the user's service quality from being greatly affected. The existing researches on congestion issues mainly focus on short-term congestion, and the congestion relieves by limiting the upload rates of the child nodes of the congested nodes and its UEs, which further effects system throughput. In this paper, congestion control schemes for the long-term congestion problem of lAB network are proposed, which includes long-term congestion trigger conditions and control schemes. The approach effectively solves the long-term congestion problem of the lAB by improving the node's backhaul capability and balancing the node's ingress and egress rate. We also demonstrate the effectiveness of the proposed method and by means of simulation results. The effectiveness of the proposed congestion control method are demonstrated by the evaluation results of uplink packet delivery rate (PDR) and user datagram protocol (UDP) delay.
5G Integrated Access and Backhaul: Performance Analysis of Congestion Control in 3GPP
2024-06-24
1026895 byte
Conference paper
Electronic Resource
English
Integrated Wireless Backhaul Over Optical Access Networks
British Library Online Contents | 2014
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