Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments

CM Vithanage; C Andrieu; RJ Piechocki; J P Coon

doi:10.1109/VETECS.2006.1683066

Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments

CM Vithanage, C Andrieu, RJ Piechocki, J P Coon

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

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Abstract

This work investigates the performance of a new reduced-complexity trellis decoding algorithm (termed the EPMBCJR algorithm) when employed for the task of equalization in an indoor multiple input multiple output wireless environment. The algorithm is a generic approximate reduced-state variation of the BCJR algorithm modeled after the conventional M-BCJR algorithm. Instead of choosing the active states based on the filtered distribution of states in the forward recursion, the EPMBCJR algorithm selects the active states based on "beliefs" on the states. This can be seen as an application of the concept of "Expectation propagation" and leads to identical forward and backward recursions which can be iterated to improve system performance. A receiver architecture comprising of channel estimation, sampling phase selection and turbo equalization is proposed and its performance evaluated through computer simulations. For the simulation of channels closely resembling the physical environment, we have used channels generated in accordance with the IEEE 802.11n TGn channel models

Translated title of the contribution	Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments
Original language	English
Title of host publication	Vehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1406 - 1410
Volume	3
DOIs	https://doi.org/10.1109/VETECS.2006.1683066
Publication status	Published - May 2006
Event	63rd Vehicular Technology Conference 2006 (VTC 2006-Spring) - Melbourne, Australia Duration: 1 May 2006 → …

Conference

Conference	63rd Vehicular Technology Conference 2006 (VTC 2006-Spring)
Country/Territory	Australia
City	Melbourne
Period	1/05/06 → …

Bibliographical note

Conference Proceedings/Title of Journal: IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring)
Rose publication type: Conference contribution

Sponsorship: The authors would like to thank Toshiba Research Europe Limited, Bristol, U.K. for funding this work

Terms of use: Copyright © 2006 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2006. 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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title = "Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments",

abstract = "This work investigates the performance of a new reduced-complexity trellis decoding algorithm (termed the EPMBCJR algorithm) when employed for the task of equalization in an indoor multiple input multiple output wireless environment. The algorithm is a generic approximate reduced-state variation of the BCJR algorithm modeled after the conventional M-BCJR algorithm. Instead of choosing the active states based on the filtered distribution of states in the forward recursion, the EPMBCJR algorithm selects the active states based on {"}beliefs{"} on the states. This can be seen as an application of the concept of {"}Expectation propagation{"} and leads to identical forward and backward recursions which can be iterated to improve system performance. A receiver architecture comprising of channel estimation, sampling phase selection and turbo equalization is proposed and its performance evaluated through computer simulations. For the simulation of channels closely resembling the physical environment, we have used channels generated in accordance with the IEEE 802.11n TGn channel models",

author = "CM Vithanage and C Andrieu and RJ Piechocki and Coon, {J P}",

note = "Conference Proceedings/Title of Journal: IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring) Rose publication type: Conference contribution Sponsorship: The authors would like to thank Toshiba Research Europe Limited, Bristol, U.K. for funding this work Terms of use: Copyright {\textcopyright} 2006 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2006. 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. ; 63rd Vehicular Technology Conference 2006 (VTC 2006-Spring) ; Conference date: 01-05-2006",

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language = "English",

volume = "3",

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

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Vithanage, CM, Andrieu, C , Piechocki, RJ & Coon, JP 2006, Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments. in Vehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia. vol. 3, Institute of Electrical and Electronics Engineers (IEEE), pp. 1406 - 1410, 63rd Vehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia, 1/05/06. https://doi.org/10.1109/VETECS.2006.1683066

Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments. / Vithanage, CM; Andrieu, C ; Piechocki, RJ et al.
Vehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia. Vol. 3 Institute of Electrical and Electronics Engineers (IEEE), 2006. p. 1406 - 1410.

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

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AU - Coon, J P

N1 - Conference Proceedings/Title of Journal: IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring) Rose publication type: Conference contribution Sponsorship: The authors would like to thank Toshiba Research Europe Limited, Bristol, U.K. for funding this work Terms of use: Copyright © 2006 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2006. 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 - 2006/5

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N2 - This work investigates the performance of a new reduced-complexity trellis decoding algorithm (termed the EPMBCJR algorithm) when employed for the task of equalization in an indoor multiple input multiple output wireless environment. The algorithm is a generic approximate reduced-state variation of the BCJR algorithm modeled after the conventional M-BCJR algorithm. Instead of choosing the active states based on the filtered distribution of states in the forward recursion, the EPMBCJR algorithm selects the active states based on "beliefs" on the states. This can be seen as an application of the concept of "Expectation propagation" and leads to identical forward and backward recursions which can be iterated to improve system performance. A receiver architecture comprising of channel estimation, sampling phase selection and turbo equalization is proposed and its performance evaluated through computer simulations. For the simulation of channels closely resembling the physical environment, we have used channels generated in accordance with the IEEE 802.11n TGn channel models

AB - This work investigates the performance of a new reduced-complexity trellis decoding algorithm (termed the EPMBCJR algorithm) when employed for the task of equalization in an indoor multiple input multiple output wireless environment. The algorithm is a generic approximate reduced-state variation of the BCJR algorithm modeled after the conventional M-BCJR algorithm. Instead of choosing the active states based on the filtered distribution of states in the forward recursion, the EPMBCJR algorithm selects the active states based on "beliefs" on the states. This can be seen as an application of the concept of "Expectation propagation" and leads to identical forward and backward recursions which can be iterated to improve system performance. A receiver architecture comprising of channel estimation, sampling phase selection and turbo equalization is proposed and its performance evaluated through computer simulations. For the simulation of channels closely resembling the physical environment, we have used channels generated in accordance with the IEEE 802.11n TGn channel models

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DO - 10.1109/VETECS.2006.1683066

M3 - Conference Contribution (Conference Proceeding)

VL - 3

SP - 1406

EP - 1410

BT - Vehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 63rd Vehicular Technology Conference 2006 (VTC 2006-Spring)

Y2 - 1 May 2006

ER -

Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments

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