The effect of different queuing regimes on a Switched Ethernet fronthaul
- Resource Type
- Authors
- Nathan J. Gomes; Mohamad Kenan Al-Hares; Philippos Assimakopoulos; Simon Hill
- Source
- 2016 18th International Conference on Transparent Optical Networks (ICTON)
- Subject
- Ethernet
Radio access network
Queueing theory
Engineering
business.industry
Quality of service
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Physical layer
020206 networking & telecommunications
02 engineering and technology
01 natural sciences
010309 optics
Base station
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Latency (engineering)
business
Computer network
Carrier Ethernet
- Language
This paper investigates the effects of different queuing regimes on the mean and standard deviation of the frame inter-arrival delay of a LTE traffic stream under the presence of background Ethernet traffic. The background traffic is used to represent traffic that would be generated by different functional subdivisions in the physical layer of traditional LTE base station. In this work, a Switched Ethernet architecture is used as the fronthaul section of a Cloud Radio Access Network (C-RAN). Contention in this fronthaul becomes an important issue since different traffic streams originating from different functional subdivisions with different quality of service specifications will be transmitted over the same physical links. Trunk ports then, will have to handle the queuing management and prioritization. Handling the traffic with different queuing regimes will reflect on the latency and latency variations of the LTE traffic.