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Enhancing LTE with Cloud-RAN and Load-Controlled Parasitic Antenna Arrays

Artuso, Matteo and Boviz, Dora and Checko, Aleksandra and Christiansen, Henrik L and Clerckx, Bruno and Cottatellucci, Laura and Gesbert, David and Gizas, Bobby and Gopalasingham, Aravinthan and Khan, Faheem and Kelif, Jean-Marc and Muller, Ralf and Ntaikos, Dimitrios and Ntougias, Konstantinos and Papadias, Constantinos B and Rassouli, Borzoo and Sedaghat, Mohammad Ali and Ratnarajah, Tharmalingam and Roullet, Laurent and Senecal, Stephane and Yin, Haifan and Zhou, Lin (2016) 'Enhancing LTE with Cloud-RAN and Load-Controlled Parasitic Antenna Arrays.' IEEE Communications Magazine, 54 (12). 183 - 191. ISSN 0163-6804

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Abstract

Cloud radio access network systems, consisting of remote radio heads densely distributed in a coverage area and connected by optical fibers to a cloud infrastructure with large computational capabilities, have the potential to meet the ambitious objectives of next generation mobile networks. Actual implementations of C-RANs tackle fundamental technical and economic challenges. In this article, we present an end-to-end solution for practically implementable C-RANs by providing innovative solutions to key issues such as the design of cost-effective hardware and power-effective signals for RRHs, efficient design and distribution of data and control traffic for coordinated communications, and conception of a flexible and elastic architecture supporting dynamic allocation of both the densely distributed RRHs and the centralized processing resources in the cloud to create virtual base stations. More specifically, we propose a novel antenna array architecture called load-controlled parasitic antenna array (LCPAA) where multiple antennas are fed by a single RF chain. Energy- and spectral-efficient modulation as well as signaling schemes that are easy to implement are also provided. Additionally, the design presented for the fronthaul enables flexibility and elasticity in resource allocation to support BS virtualization. A layered design of information control for the proposed end-to-end solution is presented. The feasibility and effectiveness of such an LCPAA-enabled C-RAN system setup has been validated through an over-the-air demonstration.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Elements
Date Deposited: 08 Nov 2018 16:54
Last Modified: 08 Nov 2018 16:54
URI: http://repository.essex.ac.uk/id/eprint/23438

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