High throughput MIMO-OFDM WLAN for urban hotspots

YQ Bian, AR Nix, EK Tameh, JP McGeehan

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

7 Citations (Scopus)
432 Downloads (Pure)

Abstract

This paper presents a set of rigorous and comprehensive coverage and throughput studies for enhanced high-capacity Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems. A ray-tracing propagation model has been used to produce site-specific MIMO channel data. Site-specific throughputs are then predicted in a city centre environment for a range of different physical layer configurations. Dynamic Transmit Power Control (TPC) is applied to lower transmit power and thus reduce interference. Results demonstrate the need for suitable link adaptation strategies under a wide range of channel conditions. Spatial Multiplexing (SM) is shown to struggle in regions close to the basestation, or for locations with low SNR. We conclude that it is vital to reconfigure parameters on a case by case basis. When a suitable space-time algorithm is combined with Adaptive Modulation and Coding (AMC) and the appropriate number of antenna elements, high peak throughputs and good geographic coverage become realistic for wireless applications in a dense urban environment.
Translated title of the contributionHigh throughput MIMO-OFDM WLAN for urban hotspots
Original languageEnglish
Title of host publicationVehicular Technology Conference 2005 (VTC 2005-Fall), Dallas
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages296 - 300
Number of pages4
ISBN (Print)0780391527
DOIs
Publication statusPublished - Nov 2005
Event62nd Vehicular Technology Conference 2005 (VTC 2005-Fall) - Dallas, United States
Duration: 1 Nov 2005 → …

Conference

Conference62nd Vehicular Technology Conference 2005 (VTC 2005-Fall)
CountryUnited States
CityDallas
Period1/11/05 → …

Bibliographical note

Conference Proceedings/Title of Journal: IEEE 62nd Vehicular Technology Conference, 2005 (VTC 2005-Fall)
Rose publication type: Conference contribution

Sponsorship: This work has been funded by the Toshiba Telecommunications Research Laboratory (TRL), Bristol, UK.

Terms of use: Copyright © 2005 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, 2005. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.


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Keywords

  • Link adaptation
  • Power control
  • Space time block codes
  • MIMO
  • OFDM

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