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Fronthaul evolution: From CPRI to Ethernet

Gomes, Nathan J., Chanclou, Philippe, Turnbull, Peter, Magee, Anthony, Jungnickel, Volker (2015) Fronthaul evolution: From CPRI to Ethernet. Optical Fiber Technology, . ISSN 1068-5200. (doi:10.1016/j.yofte.2015.07.009) (KAR id:50278)


It is proposed that using Ethernet in the fronthaul, between base station baseband unit (BBU) pools and remote radio heads (RRHs), can bring a number of advantages, from use of lower-cost equipment, shared use of infrastructure with fixed access networks, to obtaining statistical multiplexing and optimised performance through probe-based monitoring and software-defined networking. However, a number of challenges exist: ultra-high-bit-rate requirements from the transport of increased bandwidth radio streams for multiple antennas in future mobile networks, and low latency and jitter to meet delay requirements and the demands of joint processing. A new fronthaul functional division is proposed which can alleviate the most demanding bit-rate requirements by transport of baseband signals instead of sampled radio waveforms, and enable statistical multiplexing gains. Delay and synchronisation issues remain to be solved.

Item Type: Article
DOI/Identification number: 10.1016/j.yofte.2015.07.009
Uncontrolled keywords: Cloud-radio access network (C-RAN), Fronthaul, Common Public Radio Interface (CPRI), Synchronous Ethernet, Network synchronisation, Optical transmission
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 25 Aug 2015 08:27 UTC
Last Modified: 04 Feb 2022 13:27 UTC
Resource URI: (The current URI for this page, for reference purposes)

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