A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints

M Nicolaou; A Doufexi; SMD Armour; Y Sun

doi:10.1109/VETECS.2011.5956192

A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints

M Nicolaou, A Doufexi, SMD Armour, Y Sun

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

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Abstract

Link Adaptation can dynamically adjust a number of transmission parameters, most often modulation and coding, to reflect the characteristics of the wireless link to improve throughput and maintain link reliability. Most LA algorithms require only an estimate of the signal-to-noise ratio (SNR) to select an appropriate PHY mode, relying on the assumption of an AWGN channel. For channels experiencing frequency selective fading however, the conventional approach fails to accurately represent the stochastic variability across independent channels, resulting in inaccurate prediction of the current channel state and failure in selecting appropriate transmission parameters. A new channel quality metric is proposed in this paper that attempts to estimate the likelihood of packet errors in a fading channel and adjust Modulation and Coding Scheme (MCS) selection across each fading realisation independently. Results show improved mode selection efficiency over the conventional LA approach with added flexibility, as this approach is independent of the channel environment, providing a universal solution to LA.

Translated title of the contribution	A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints
Original language	English
Title of host publication	IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1 - 5
Number of pages	5
ISBN (Print)	9781424483327
DOIs	https://doi.org/10.1109/VETECS.2011.5956192
Publication status	Published - May 2011
Event	73rd Vehicular Technology Conference 2011 (VTC 2011-Spring) - Budapest, Hungary Duration: 1 May 2011 → …

Publication series

Name
ISSN (Print)	15502252

Conference

Conference	73rd Vehicular Technology Conference 2011 (VTC 2011-Spring)
Country/Territory	Hungary
City	Budapest
Period	1/05/11 → …

Bibliographical note

Rose publication type: Conference contribution

Additional information: With accompanying conference poster

Sponsorship: The authors wish to acknowledge the financial support of Toshiba Research Europe Limited.

Terms of use: Copyright © 2011 IEEE. Reprinted with permission, from - M Nicolaou, A Doufexi, SMD Armour, Y Sun; paper 'A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints'; VTC Spring 2011; May 2011.

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.

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10.1109/VETECS.2011.5956192

Conference paperAccepted author manuscript, 212 KB
Accompanying conference posterAccepted author manuscript, 514 KB

http://hdl.handle.net/1983/1773

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title = "A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints",

abstract = "Link Adaptation can dynamically adjust a number of transmission parameters, most often modulation and coding, to reflect the characteristics of the wireless link to improve throughput and maintain link reliability. Most LA algorithms require only an estimate of the signal-to-noise ratio (SNR) to select an appropriate PHY mode, relying on the assumption of an AWGN channel. For channels experiencing frequency selective fading however, the conventional approach fails to accurately represent the stochastic variability across independent channels, resulting in inaccurate prediction of the current channel state and failure in selecting appropriate transmission parameters. A new channel quality metric is proposed in this paper that attempts to estimate the likelihood of packet errors in a fading channel and adjust Modulation and Coding Scheme (MCS) selection across each fading realisation independently. Results show improved mode selection efficiency over the conventional LA approach with added flexibility, as this approach is independent of the channel environment, providing a universal solution to LA.",

author = "M Nicolaou and A Doufexi and SMD Armour and Y Sun",

note = "Rose publication type: Conference contribution Additional information: With accompanying conference poster Sponsorship: The authors wish to acknowledge the financial support of Toshiba Research Europe Limited. Terms of use: Copyright {\textcopyright} 2011 IEEE. Reprinted with permission, from - M Nicolaou, A Doufexi, SMD Armour, Y Sun; paper 'A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints'; VTC Spring 2011; May 2011. 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. ; 73rd Vehicular Technology Conference 2011 (VTC 2011-Spring) ; Conference date: 01-05-2011",

year = "2011",

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doi = "10.1109/VETECS.2011.5956192",

language = "English",

isbn = "9781424483327",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

pages = "1 -- 5",

booktitle = "IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011",

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Nicolaou, M, Doufexi, A , Armour, SMD & Sun, Y 2011, A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints. in IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011. Institute of Electrical and Electronics Engineers (IEEE), pp. 1 - 5, 73rd Vehicular Technology Conference 2011 (VTC 2011-Spring), Budapest, Hungary, 1/05/11. https://doi.org/10.1109/VETECS.2011.5956192

A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints. / Nicolaou, M; Doufexi, A ; Armour, SMD et al.
IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011. Institute of Electrical and Electronics Engineers (IEEE), 2011. p. 1 - 5.

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

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AU - Nicolaou, M

AU - Doufexi, A

AU - Armour, SMD

AU - Sun, Y

N1 - Rose publication type: Conference contribution Additional information: With accompanying conference poster Sponsorship: The authors wish to acknowledge the financial support of Toshiba Research Europe Limited. Terms of use: Copyright © 2011 IEEE. Reprinted with permission, from - M Nicolaou, A Doufexi, SMD Armour, Y Sun; paper 'A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints'; VTC Spring 2011; May 2011. 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 - 2011/5

Y1 - 2011/5

N2 - Link Adaptation can dynamically adjust a number of transmission parameters, most often modulation and coding, to reflect the characteristics of the wireless link to improve throughput and maintain link reliability. Most LA algorithms require only an estimate of the signal-to-noise ratio (SNR) to select an appropriate PHY mode, relying on the assumption of an AWGN channel. For channels experiencing frequency selective fading however, the conventional approach fails to accurately represent the stochastic variability across independent channels, resulting in inaccurate prediction of the current channel state and failure in selecting appropriate transmission parameters. A new channel quality metric is proposed in this paper that attempts to estimate the likelihood of packet errors in a fading channel and adjust Modulation and Coding Scheme (MCS) selection across each fading realisation independently. Results show improved mode selection efficiency over the conventional LA approach with added flexibility, as this approach is independent of the channel environment, providing a universal solution to LA.

AB - Link Adaptation can dynamically adjust a number of transmission parameters, most often modulation and coding, to reflect the characteristics of the wireless link to improve throughput and maintain link reliability. Most LA algorithms require only an estimate of the signal-to-noise ratio (SNR) to select an appropriate PHY mode, relying on the assumption of an AWGN channel. For channels experiencing frequency selective fading however, the conventional approach fails to accurately represent the stochastic variability across independent channels, resulting in inaccurate prediction of the current channel state and failure in selecting appropriate transmission parameters. A new channel quality metric is proposed in this paper that attempts to estimate the likelihood of packet errors in a fading channel and adjust Modulation and Coding Scheme (MCS) selection across each fading realisation independently. Results show improved mode selection efficiency over the conventional LA approach with added flexibility, as this approach is independent of the channel environment, providing a universal solution to LA.

U2 - 10.1109/VETECS.2011.5956192

DO - 10.1109/VETECS.2011.5956192

M3 - Conference Contribution (Conference Proceeding)

SN - 9781424483327

SP - 1

EP - 5

BT - IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 73rd Vehicular Technology Conference 2011 (VTC 2011-Spring)

Y2 - 1 May 2011

ER -

A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints

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