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Performance analysis of downlink and uplink decoupled access in clustered heterogeneous cellular networks

  • Mohammad ArifEmail author
  • Shurjeel Wyne
  • Junaid Ahmed
Article
  • 39 Downloads

Abstract

The performance of heterogeneous cellular networks (HCNs) is typically analyzed with the assumption that the users connect with the same base station in uplink and downlink. However, recent investigations have shown that downlink–uplink decoupling (DUDe) can provide network performance gains relative to the conventional coupled access. Many authors have evaluated HCN performance while assuming that the network users are distributed according to a homogeneous Poisson point process (HPPP). However, the HPPP cannot accurately model the uplink interference when the users are clustered in urban hotspots such as shopping malls and sports stadiums. This work investigates DUDe access for an HCN with user-clustering modeled by the Matern cluster process. We derive analytical expressions of the coverage probability and average throughput for DUDe access as well as the conventional coupled access. The results show that DUDe outperforms the coupled access scheme in terms of coverage and throughput. The user-clustering is also shown to benefit the coverage and throughput performance relative to the case of HPPP distributed users. The derived results are validated by Monte Carlo simulations.

Keywords

Heterogeneous cellular networks Stochastic geometry Downlink–uplink decoupling Matern cluster process Coverage probability 

Notes

Acknowledgements

This work is supported by the EU-funded Project ATOM-690750, approved under call H2020-MSCA-RISE-2015.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringCOMSATS University IslamabadIslamabadPakistan

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