MIMO-OFDM WLAN architectures, area coverage, and link adaptation for urban hotspots

YQ Bian; AR Nix; EK Tameh; JP McGeehan

doi:10.1109/TVT.2007.909289

MIMO-OFDM WLAN architectures, area coverage, and link adaptation for urban hotspots

YQ Bian, AR Nix, EK Tameh, JP McGeehan

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Abstract

This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved

Translated title of the contribution	MIMO–OFDM WLAN architectures, area coverage, and link adaptation for urban hotspots
Original language	English
Pages (from-to)	2364 - 2374
Number of pages	11
Journal	IEEE Transactions on Vehicular Technology
Volume	57
Issue number	4
DOIs	https://doi.org/10.1109/TVT.2007.909289
Publication status	Published - Jul 2008

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Rose publication type: Journal article

Sponsorship: This work was supported by Toshiba Research Europe Ltd., Bristol, U.K.

Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Transactions on Vehicular Technology.

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 [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

spatial multiplexing (SM)
orthogonal frequency division
space–time block codes (STBCs)
propagation
link adaptation (LA)
power control

Access to Document

10.1109/TVT.2007.909289

Bian Veh Tech Trans July 2008Accepted author manuscript, 1.55 MB

http://hdl.handle.net/1983/1197

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Cite this

@article{f512ba96791b4e73a633ed076d630717,

title = "MIMO-OFDM WLAN architectures, area coverage, and link adaptation for urban hotspots",

abstract = "This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved",

keywords = "spatial multiplexing (SM), orthogonal frequency division, space–time block codes (STBCs), propagation, link adaptation (LA), power control",

author = "YQ Bian and AR Nix and EK Tameh and JP McGeehan",

note = "Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Sponsorship: This work was supported by Toshiba Research Europe Ltd., Bristol, U.K. Terms of use: Copyright {\textcopyright} 2008 IEEE. Reprinted from IEEE Transactions on Vehicular Technology. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ",

year = "2008",

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language = "English",

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AU - Bian, YQ

AU - Nix, AR

AU - Tameh, EK

AU - McGeehan, JP

N1 - Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Sponsorship: This work was supported by Toshiba Research Europe Ltd., Bristol, U.K. Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Transactions on Vehicular Technology. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 2008/7

Y1 - 2008/7

N2 - This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved

AB - This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved

KW - spatial multiplexing (SM)

KW - orthogonal frequency division

KW - space–time block codes (STBCs)

KW - propagation

KW - link adaptation (LA)

KW - power control

U2 - 10.1109/TVT.2007.909289

DO - 10.1109/TVT.2007.909289

M3 - Article (Academic Journal)

SN - 0018-9545

VL - 57

SP - 2364

EP - 2374

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

IS - 4

ER -

MIMO-OFDM WLAN architectures, area coverage, and link adaptation for urban hotspots

Abstract

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Keywords

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