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 language | English |
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Title of host publication | 2018 20th International Conference on Transparent Optical Networks, ICTON 2018 |
Place of Publication | Piscataway |
Publisher | IEEE Computer Society |
Number of pages | 5 |
ISBN (Electronic) | 978-1-5386-6605-0 |
ISBN (Print) | 978-1-5386-6606-7 |
DOIs | |
Publication status | Published - 26 Sep 2018 |
Event | 20th International Conference on Transparent Optical Networks, ICTON 2018 - Bucharest, Romania Duration: 1 Jul 2018 → 5 Jul 2018 |
Conference
Conference | 20th International Conference on Transparent Optical Networks, ICTON 2018 |
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Country | Romania |
City | Bucharest |
Period | 1/07/18 → 5/07/18 |
Keywords
- 5G
- C-RAN
- low latency XC
- NETCONF