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Transmission and Latency-Aware Load Balancing for Fog Radio Access Networks

Fog computing-based radio access networks (F-RANs) aim to extend the computing and storage facilities of the centralized cloud radio access networks (C-RANs) to the network edge. Compared with the centralized baseband unit pool in the C-RAN, F-RAN reduces the burden on fronthaul. Thus, the F-RAN is...

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Main Authors: Mukherjee, Mithun, Yejun Liu, Lloret, Jaime, Lei Guo, Matam, Rakesh, Aazam, Mohammad
Format: Conference Proceeding
Language:eng ; jpn
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Yejun Liu
Lloret, Jaime
Lei Guo
Matam, Rakesh
Aazam, Mohammad
description Fog computing-based radio access networks (F-RANs) aim to extend the computing and storage facilities of the centralized cloud radio access networks (C-RANs) to the network edge. Compared with the centralized baseband unit pool in the C-RAN, F-RAN reduces the burden on fronthaul. Thus, the F-RAN is foreseen as a viable solution towards ultra-low latency service provisioning. However, due to limited computing and storage facilities in fog computing-enabled access points (F-APs), some tasks that cannot be executed on the primary F-APs are transferred to other F-APs. In worst-case, the tasks are sent to the resource-enriched centralized cloud for processing. The transmission latency between F-APs, F-AP-to-end- user, and fronthaul latency strongly depends on interference power from the undesired network element as well as end-users. At the same time, the computational latency increases with the queuing delay. In this paper, we propose a load balancing scheme to address the tradeoff between transmission and computing latencies in F- RANs. Finally, the extensive simulation results show that the proposed scheme outperforms the greedy approach to meet the critical requirements, such as low-latency and minimal task offloading to the cloud in the F-RAN for the low-latency communications.
doi_str_mv 10.1109/GLOCOM.2018.8647580
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subjects Cloud computing
Delays
Edge computing
Interference
Radio access networks
Radio frequency
Task analysis
title Transmission and Latency-Aware Load Balancing for Fog Radio Access Networks
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