基于时延约束的以太网分组C-RAN前传丢包研究

2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2019-09-01 DOI:10.1109/PIMRC.2019.8904279

J. Chaudhary, Jobin Francis, A. Barreto, G. Fettweis

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引用次数: 3

摘要

延迟是5G及以后移动网络的关键性能指标之一，特别是对于超可靠和低延迟通信(URLLC)。在URLLC应用中，要求传输的报文在一定的时间内到达目的地，不能满足这一严格延迟要求的报文将被丢弃。本文计算了以太网交换机分组前传的等待时间，并计算了由于传输的数据包无法满足跳频延迟阈值而产生的丢包率(PLR)。此外，我们还导出了可处理的等待时间分布的封闭解，并用仿真结果进行了验证。结果表明，PLR主要受分组大小、频谱效率、交换速度和到达率的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Packet Loss in Latency-constrained Ethernet-based Packetized C-RAN Fronthaul

Latency is the one of the critical performance metrics for 5G and beyond mobile networks, particularly for ultra-reliable and low-latency communications (URLLC). In URLLC applications, it is required that the transmitted packets reach the destination within a certain time and the packets that are unable to meet this strict latency requirement will be discarded. In this paper, we compute the waiting time in the packetized fronthaul at the Ethernet switch and compute packet loss rate (PLR) incurred due to the inability of the transmitted packets to meet the FH latency threshold. In addition, we derive the tractable closed-form solution for the waiting time distribution and verify it with simulation results. Our results show that PLR is affected mainly by packet size, spectral efficiency, switch speed and arrival rate.

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来源期刊

2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

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