Packet segmentation for contention-based transmission in 5G

摘要

Contention-based transmission is a promising solution for small packet traffic in the fifth generation mobile networks (5G). Packet segmentation is applied to efficiently support diverse services with relative fixed transport block (TB) setting. The packet segmentation defined by LTE RLC Unac-knowledged Mode (UM) is used in the study. First, we determine the header overhead of the segmentation. Then the impact of packet segmentation on the network throughput is analyzed and evaluated considering the different traffic patterns, network traffic loads and numbers of retransmission. The results show that packet segmentation is essential for the traffic with a large range of packet sizes. The results obtained in this paper can be used for the design of packet segmentation in different conditions.