RT Journal Article
T1 Delay analysis of mixed fronthaul and backhaul traffic under strict priority queueing discipline in a 5G packet transport network
A1 Gowda, Apurva Shantharaj
A1 Hernández Gutiérrez, José Alberto
A1 Larrabeiti López, David
A1 Kazovsky, Leonid
AB Virtualization of the base station for the purpose of centralization is being actively studied and researched as an implementation option for 5G mobile networks. Proposed as Cloud radio access network, the technology is expected to facilitate easier operation and maintenance than regular radio access networks. However, the base stations traffic has stringent delay requirements. In this paper, we explore the possibility of multiplexing fronthaul traffic and traditional backhaul traffic as it traverses over the metropolitan network while keeping the average fronthaul queueing delay and jitter under control. We analyze and simulate the cases of a single fronthaul flow and multiple fronthaul flows arriving at the packet switch assuming strict priority for the fronthaul queue. We propose a fronthaul frame aggregation strategy to improve the packet transmission efficiency while keeping the average fronthaul queueing delay and jitter constant regardless of the percentage of fronthaul traffic. While the criteria for aggregation is different for the 2 cases, we show that the optimal number of basic frames to aggregate is between 3-10 frames assuming the Common Public Radio Interface protocol.
PB John Wiley & Sons, Ltd.
SN 2161-3915
YR 2017
FD 2017-06
LK https://hdl.handle.net/10016/25841
UL https://hdl.handle.net/10016/25841
LA eng
NO The authors would like to acknowledge the support of projects TIGRE5-CM (grant no. S2013/ICE-2919) and H2020 EU-funded 5G-Crosshaul Project (grant no. 671598) to the development of this work.
DS e-Archivo
RD 5 jul. 2024