The impact of beamforming and coordination on spectrum pooling in mmWave cellular networks

Hossein Shokri-Ghadikolaei, Federico Boccardi, Elza Erkip, Carlo Fischione, Gábor Fodor, Marios Kountouris, Petar Popovski, Michele Zorzi

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

Spectrum pooling is not typically used in current cellular networks, because it only provides a slight performance improvement while requiring heavy coordination among different cellular operators. However, these problems can be potentially overcome in millimeter-wave (mmWave) networks, thanks to the use of beamforming both at base stations and at user equipments. In this paper, we develop a joint beamforming and cell association optimization problem to characterize the performance gain that can be obtained when spectrum pooling is used, as a function of the underlying beamforming and coordination strategies. Our performance analysis reveals that beamforming can substantially reduce the need for coordination and simplify the implementation of spectrum pooling. These benefits are more prominent at higher mmWave frequencies (for example, 73 GHz) due to the possibility of having antenna arrays with more elements within the radome. The results of this paper provides useful insights on the feasibility of spectrum pooling at mmWave networks.

Original languageEnglish
Title of host publication2016 50th Asilomar Conference on Signals, Systems and Computers
Number of pages6
PublisherIEEE
Publication date6 Mar 2017
Pages21-26
Article number7868986
ISBN (Electronic)9781538639542
DOIs
Publication statusPublished - 6 Mar 2017
Event50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016 - Pacific Grove, United States
Duration: 6 Nov 20169 Nov 2016

Conference

Conference50th Asilomar Conference on Signals, Systems and Computers, ACSSC 2016
Country/TerritoryUnited States
CityPacific Grove
Period06/11/201609/11/2016
SeriesAsilomar Conference on Signals, Systems and Computers. Conference Record
ISSN1058-6393

Keywords

  • beamforming
  • coordination
  • millimeter wave networks
  • Spectrum pooling

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