Recent Progress on C-RAN Centralization and Cloudification

This paper presents the latest progress on cloud RAN (C-RAN) in the areas of centralization and virtualization. A C-RAN system centralizes the baseband processing resources into a pool and virtualizes soft base-band units on demand. The major challenges for C-RAN including front-haul and virtualizat...

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Veröffentlicht in:IEEE access 2014, Vol.2, p.1030-1039
Hauptverfasser: Chih-Lin I, Jinri Huang, Ran Duan, Chunfeng Cui, Jiang, Jesse, Lei Li
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creator Chih-Lin I
Jinri Huang
Ran Duan
Chunfeng Cui
Jiang, Jesse
Lei Li
description This paper presents the latest progress on cloud RAN (C-RAN) in the areas of centralization and virtualization. A C-RAN system centralizes the baseband processing resources into a pool and virtualizes soft base-band units on demand. The major challenges for C-RAN including front-haul and virtualization are analyzed with potential solutions proposed. Extensive field trials verify the viability of various front-haul solutions, including common public radio interface compression, single fiber bidirection and wavelength-division multiplexing. In addition, C-RANs facilitation of coordinated multipoint (CoMP) implementation is demonstrated with 50%-100% uplink CoMP gain observed in field trials. Finally, a test bed is established based on general purpose platform with assisted accelerators. It is demonstrated that this test bed can support multi-RAT, i.e., Time-Division Duplexing Long Term Evolution, Frequency-Division Duplexing Long Term Evolution, and Global System for Mobile Communications efficiently and presents similar performance to traditional systems.
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subjects Accelerators
Evolution
Frequency division duplexing
Long term
Mobile communication
Mobile communication systems
Optical fiber devices
Optical fiber networks
Optical fiber testing
Radio access networks
Test stands
Virtualization
Wavelength division multiplexing
title Recent Progress on C-RAN Centralization and Cloudification
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