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Massive MIMO Meets Small CellMassive MIMO in Small Cell Networks: Wireless Backhaul

Massive MIMO Meets Small Cell: Massive MIMO in Small Cell Networks: Wireless Backhaul [Dense small cell networks are expected to be deployed in the next generation wireless system to provide better coverage and throughput to meet the ever-increasing requirements of high data rate applications. As the trend toward densification calls for more and more wireless links to forward a massive backhaul traffic into the core network, it is critically important to take into account the presence of a wireless backhaul for the energy-efficient design of small cell networks. In this chapter, we develop a general framework to analyze the energy efficiency of a two-tier small cell network with massive MIMO macro base stations and wireless backhaul. Our analysis reveal that under spatial multiplexing, the energy efficiency of a small cell network is sensitive to the network load, and it should be taken into account when controlling the number of users served by each base station. We also demonstrate that a two-tier small cell network with wireless backhaul can be significantly more energy efficient than a one-tier cellular network. However, this requires the bandwidth division between radio access links and wireless backhaul to be optimally designed according to the load conditions.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Massive MIMO Meets Small CellMassive MIMO in Small Cell Networks: Wireless Backhaul

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Publisher
Springer International Publishing
Copyright
© The Author(s) 2017
ISBN
978-3-319-43713-2
Pages
35 –59
DOI
10.1007/978-3-319-43715-6_3
Publisher site
See Chapter on Publisher Site

Abstract

[Dense small cell networks are expected to be deployed in the next generation wireless system to provide better coverage and throughput to meet the ever-increasing requirements of high data rate applications. As the trend toward densification calls for more and more wireless links to forward a massive backhaul traffic into the core network, it is critically important to take into account the presence of a wireless backhaul for the energy-efficient design of small cell networks. In this chapter, we develop a general framework to analyze the energy efficiency of a two-tier small cell network with massive MIMO macro base stations and wireless backhaul. Our analysis reveal that under spatial multiplexing, the energy efficiency of a small cell network is sensitive to the network load, and it should be taken into account when controlling the number of users served by each base station. We also demonstrate that a two-tier small cell network with wireless backhaul can be significantly more energy efficient than a one-tier cellular network. However, this requires the bandwidth division between radio access links and wireless backhaul to be optimally designed according to the load conditions.]

Published: Aug 6, 2016

Keywords: Energy Efficiency; Random Matrix Theory; Zero Force; Macro Cell; Spatial Multiplex

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