Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance

Lars Berger, Troels Emil Kolding, Preben Elsgard Mogensen, Laurent Schumacher

Research output: Contribution to journalLiterature review

Abstract

This paper provides link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular HSDPA system. The dual antenna RAKE receiver serves as baseline reference. It is shown that the MMSE receiver's spatial interference suppression benefit heavily depends on the amount of experienced dominant other-sector interference. For example, in a Pedestrian A fading environment with a dominant other-sector interference ratio (DIR) of 6.5 dB, spatial interference suppression leads to approximately 3.5 dB mean SINR gain. For a much lower DIR of -1.5 dB the mean SINR gain shrinks to 0.8 dB. The simulation results are accompanied by a novel analytical bound that in flat Rayleigh fading and for uncorrelated rx antenna branches describes spatial interference suppression SINR gain as a function of DIR. The sector throughput benefit from spatial interference suppression remains below 20%. This relatively small benefit is due to the fact that high DIR situations > 2 dB are rare in the investigated macrocellular scenario. Moreover, the highest spatial interference suppression SINR gains occur in the upper part of the HSDPA system's dynamic range, where they map less efficiently into sector throughput.
Original languageEnglish
JournalProceedings of 8th International Symposium on Wireless Personal Mobile Communications
Publication statusPublished - 2005

Fingerprint

3G mobile communication systems
Interference suppression
Antennas
Throughput
Rayleigh fading
Telecommunication links
Dynamical systems

Keywords

  • Dominant other-sector interference
  • spatial interference suppression
  • HSDPA

Cite this

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title = "Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance",
abstract = "This paper provides link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular HSDPA system. The dual antenna RAKE receiver serves as baseline reference. It is shown that the MMSE receiver's spatial interference suppression benefit heavily depends on the amount of experienced dominant other-sector interference. For example, in a Pedestrian A fading environment with a dominant other-sector interference ratio (DIR) of 6.5 dB, spatial interference suppression leads to approximately 3.5 dB mean SINR gain. For a much lower DIR of -1.5 dB the mean SINR gain shrinks to 0.8 dB. The simulation results are accompanied by a novel analytical bound that in flat Rayleigh fading and for uncorrelated rx antenna branches describes spatial interference suppression SINR gain as a function of DIR. The sector throughput benefit from spatial interference suppression remains below 20{\%}. This relatively small benefit is due to the fact that high DIR situations > 2 dB are rare in the investigated macrocellular scenario. Moreover, the highest spatial interference suppression SINR gains occur in the upper part of the HSDPA system's dynamic range, where they map less efficiently into sector throughput.",
keywords = "Dominant other-sector interference, spatial interference suppression, HSDPA",
author = "Lars Berger and Kolding, {Troels Emil} and Mogensen, {Preben Elsgard} and Laurent Schumacher",
year = "2005",
language = "English",
journal = "Proceedings of 8th International Symposium on Wireless Personal Mobile Communications",

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Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance. / Berger, Lars; Kolding, Troels Emil; Mogensen, Preben Elsgard; Schumacher, Laurent.

In: Proceedings of 8th International Symposium on Wireless Personal Mobile Communications, 2005.

Research output: Contribution to journalLiterature review

TY - JOUR

T1 - Effects of Dominant Other-Sector Interference on Multi-Antenna HSDPA Performance

AU - Berger, Lars

AU - Kolding, Troels Emil

AU - Mogensen, Preben Elsgard

AU - Schumacher, Laurent

PY - 2005

Y1 - 2005

N2 - This paper provides link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular HSDPA system. The dual antenna RAKE receiver serves as baseline reference. It is shown that the MMSE receiver's spatial interference suppression benefit heavily depends on the amount of experienced dominant other-sector interference. For example, in a Pedestrian A fading environment with a dominant other-sector interference ratio (DIR) of 6.5 dB, spatial interference suppression leads to approximately 3.5 dB mean SINR gain. For a much lower DIR of -1.5 dB the mean SINR gain shrinks to 0.8 dB. The simulation results are accompanied by a novel analytical bound that in flat Rayleigh fading and for uncorrelated rx antenna branches describes spatial interference suppression SINR gain as a function of DIR. The sector throughput benefit from spatial interference suppression remains below 20%. This relatively small benefit is due to the fact that high DIR situations > 2 dB are rare in the investigated macrocellular scenario. Moreover, the highest spatial interference suppression SINR gains occur in the upper part of the HSDPA system's dynamic range, where they map less efficiently into sector throughput.

AB - This paper provides link level SINR simulation results and network level sector throughput simulation results that quantify the benefit of dual antenna MMSE reception in a macrocellular HSDPA system. The dual antenna RAKE receiver serves as baseline reference. It is shown that the MMSE receiver's spatial interference suppression benefit heavily depends on the amount of experienced dominant other-sector interference. For example, in a Pedestrian A fading environment with a dominant other-sector interference ratio (DIR) of 6.5 dB, spatial interference suppression leads to approximately 3.5 dB mean SINR gain. For a much lower DIR of -1.5 dB the mean SINR gain shrinks to 0.8 dB. The simulation results are accompanied by a novel analytical bound that in flat Rayleigh fading and for uncorrelated rx antenna branches describes spatial interference suppression SINR gain as a function of DIR. The sector throughput benefit from spatial interference suppression remains below 20%. This relatively small benefit is due to the fact that high DIR situations > 2 dB are rare in the investigated macrocellular scenario. Moreover, the highest spatial interference suppression SINR gains occur in the upper part of the HSDPA system's dynamic range, where they map less efficiently into sector throughput.

KW - Dominant other-sector interference

KW - spatial interference suppression

KW - HSDPA

M3 - Literature review

JO - Proceedings of 8th International Symposium on Wireless Personal Mobile Communications

JF - Proceedings of 8th International Symposium on Wireless Personal Mobile Communications

ER -