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2017 | OriginalPaper | Chapter

Large Scale Fading Pre-coder for Massive MIMO Without Cell Cooperation

Authors : Tedros Salih, Elijah Mwangi, Kibet Langat

Published in: Emerging Trends in Electrical, Electronic and Communications Engineering

Publisher: Springer International Publishing

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Abstract

In massive MIMO technology the channel is estimated using uplink training by sending an orthogonal pilot sequence from users to the base station. These sequences are re-used in the cell and also outside the cell. This gives rise to a channel estimation error referred to as pilot contamination. Large scale fading precoding which is based on the cooperation between cells has been proposed to mitigate pilot contamination. However this approach is known to limit in data transmission rate. In this paper, we propose a novel uplink training scheme to mitigate pilot contamination using a large scale fading precoding without the need of cooperation between cells. This achieves a higher transmission rate over existing method. The simulation results show that the proposed scheme improves 5% outage rate 10 times, over the existing method.

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previous chapter Cooperative Spectrum Sensing in the DSA: Simulation of Spectrum Sensing Time Consumptions by Cognitive Radio Secondary Users
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Metadata
Title
Large Scale Fading Pre-coder for Massive MIMO Without Cell Cooperation
Authors
Tedros Salih
Elijah Mwangi
Kibet Langat
Copyright Year
2017
Book
Emerging Trends in Electrical, Electronic and Communications Engineering

Print ISBN: 978-3-319-52170-1

Electronic ISBN: 978-3-319-52171-8

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-52171-8_21