An SDR-Based Experimental Study of Reliable and Low-Latency Ethernet-Based Fronthaul with MAC-PHY Split

被引:1
|
作者
Mountaser, Ghizlane [1 ]
Mahmoodi, Toktam [1 ]
机构
[1] Kings Coll London, Dept Engn, Ctr Telecommun Res CTR, London WC2R 2LS, England
来源
FUTURE INTERNET | 2021年 / 13卷 / 07期
基金
英国工程与自然科学研究理事会;
关键词
Cloud-RAN; ethernet-based fronthaul; functional split; multi-path; latency; reliability;
D O I
10.3390/fi13070170
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Cloud-Radio Access Network (RAN) is one of the architectural solutions for those mobile networks that aim to provide an infrastructure that satisfies the communication needs of a wide range of services and deployments. In Cloud-RAN, functions can be flexibly split between central and distributed units, which enables the use of different types of transport network. Ethernet-based fronthaul can be an attractive solution for Cloud-RAN. On the one hand, the deployment of Ethernet-based fronthaul enables Cloud-RAN to provide more diverse, flexible and cost-efficient solutions. On the other hand, Ethernet-based fronthaul requires packetized communication, which imposes challenges to delivering stringent latency requirements between RAN functionalities. In this paper, we set up a hardware experiment based on Cloud-RAN with a low layer split, particularly between medium access control and the physical layer. The aim is to demonstrate how multi-path and channel coding over the fronthaul can improve fronthaul reliability while ensuring that: (i) latency results meet the standard requirements; and (ii) the overall system operates properly. Our results show that the proposed solution can improve fronthaul reliability while latency remains below a strict latency bound required by the 3rd Generation Partnership Project for this functional split.
引用
收藏
页数:13
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