Performance Evaluation of NETCONF-Based Low Latency Cross-Connect for 5G C-RAN Architectures

B. Andrus, A. Autenrieth, S. Pachnicke, S. Zou, Juan José Vegas Olmos, I. T. Monroy

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The development of 5G wireless technology is in progress looking to cope with the increasing demands for high capacity, low latency, and ubiquitous mobile access. Cloud/Centralized Radio Access Networks (C-RAN) has been proposed as a promising approach to address the 5G benchmarks. C-RAN is a rising mobile network architecture based on the centralization and pooling of baseband processing elements, with the scope of increasing resource utilization efficiency and air-interface performance gains with fast scaling multi-cell coordination. In this paper we focus on proposing and evaluating a flexible low-latency cross-connect (XC) switch that allows a dynamic scheduling of networking resources between baseband units (BBUs) and remote radio heads (RRHs) in C-RAN deployments. On the one hand, we develop a control plane mechanism for manipulating the XC configuration and state data based on a custom YANG model and Network Configuration (NTCONF) protocol. Using a standard open NETCONF interface, automation of heterogeneous C-RAN resource assignment can be facilitated for 5G architectures. Secondly, we evaluate the performance of our XC in relation to the C-RAN stringent requirements and show that the latency and jitter introduced have negligible influence compared to radio interface limits. The impact of switching delay on the performance of a live system has yet to be tested however, a measured average switching time of 252 ms could still disrupt the ongoing connections.

Original languageEnglish
Title of host publicationProceedings of 20th International Conference on Transparent Optical Networks
Number of pages5
PublisherIEEE Computer Society Press
Publication date26 Sep 2018
Article number8473644
ISBN (Print)9781538666050
DOIs
Publication statusPublished - 26 Sep 2018
Event20th International Conference on Transparent Optical Networks, ICTON 2018 - Bucharest, Romania
Duration: 1 Jul 20185 Jul 2018

Conference

Conference20th International Conference on Transparent Optical Networks, ICTON 2018
CountryRomania
CityBucharest
Period01/07/201805/07/2018
SponsorApex Technologies, MDPI, Nea Spec, Opto Sigma, Schaefer Technologie GmbH

Keywords

  • 5G
  • C-RAN
  • Low latency XC
  • NETCONF

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