Low-feedback multiple-access and scheduling via location and geometry information

C Han, MW Webb, A Doufexi, MA Beach

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

This paper exploits the use of location information of wireless terminals to improve the performance of a beamforming system and support multiple access. Based on a system providing real-time 3D coordinate information of all terminals in the environment, a novel feedback-free multi-user scheduler is proposed. It chooses a set of angularly separated wireless terminals for simultaneous transmission in order to reduce the impact of mutual interference on overall system performance. If additional feedback of signal-to-interference and noise ratio is available, a location-assisted multi-user scheduler is also suggested to further improve the overall system performance. Both multi-user schedulers are based on a rate-greedy approach. To improve the fairness in resource allocation without introducing additional feedback overhead, a modified proportional fair algorithm (PFA) based on location information can be applied to a beamforming OFDMA system. By scaling the window length of PFA, a range of trade-offs between fairness and rate can be achieved.
Translated title of the contributionLow-feedback multiple-access and scheduling via location and geometry information
Original languageEnglish
Title of host publicationIEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)9781424435739
DOIs
Publication statusPublished - Sep 2010
Event72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 - Ottawa, Canada
Duration: 1 Sep 2010 → …

Publication series

Name
ISSN (Print)10903038

Conference

Conference72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
CountryCanada
CityOttawa
Period1/09/10 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors wish to thank all partners to the ViewNet project for their discussions and participation in this work.

Terms of use: Copyright © 2010 IEEE. Reprinted from IEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010.

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Keywords

  • Viewnet
  • location information
  • beamforming
  • multi-user Scheduling

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  • Projects

    VIEWNET

    Calway, A. D.

    1/06/081/06/10

    Project: Research

    Cite this

    Han, C., Webb, MW., Doufexi, A., & Beach, MA. (2010). Low-feedback multiple-access and scheduling via location and geometry information. In IEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 (pp. 1 - 5). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/VETECF.2010.5594100