Insights and approaches for low-complexity 5G small-cell base-station design for indoor dense networks

Muirhead, D., Imran, M. A. and Arshad, K. (2015) Insights and approaches for low-complexity 5G small-cell base-station design for indoor dense networks. IEEE Access, 3, pp. 1562-1572. (doi:10.1109/ACCESS.2015.2473661)

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Abstract

This paper investigates low-complexity approaches to small-cell base-station (SBS) design, suitable for future 5G millimeter-wave (mmWave) indoor deployments. Using large-scale antenna systems and high-bandwidth spectrum, such SBS can theoretically achieve the anticipated future data bandwidth demand of 10000 fold in the next 20 years. We look to exploit small cell distances to simplify SBS design, particularly considering dense indoor installations. We compare theoretical results, based on a link budget analysis, with the system simulation of a densely deployed indoor network using appropriate mmWave channel propagation conditions. The frequency diverse bands of 28 and 72 GHz of the mmWave spectrum are assumed in the analysis. We investigate the performance of low-complexity approaches using a minimal number of antennas at the base station and the user equipment. Using the appropriate power consumption models and the state-of-the-art sub-component power usage, we determine the total power consumption and the energy efficiency of such systems. With mmWave being typified nonline-of-sight communication, we further investigate and propose the use of direct sequence spread spectrum as a means to overcome this, and discuss the use of multipath detection and combining as a suitable mechanism to maximize link reliability.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Muirhead, D., Imran, M. A., and Arshad, K.
College/School:College of Science and Engineering > School of Engineering
Journal Name:IEEE Access
Publisher:IEEE
ISSN:2169-3536
ISSN (Online):2169-3536
Published Online:27 August 2015
Copyright Holders:Copyright © 2015 IEEE
First Published:First published in IEEE Access 3: 1562-1572
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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