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Full-Rate, Full-Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels

Full-Rate, Full-Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels
Full-Rate, Full-Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels
A full-rate, full-diversity Adaptive Space Time Block Coding (ASTBC) scheme based on Singular Value Decomposition (SVD) is proposed for transmission over Rayleigh fading channels. The ASTBC-SVD scheme advocated is capable of providing both full-rate and full-diversity for any number of transmit antennas, Nt, provided that the number of receive antennas, Nr, equals to Nt. Furthermore, the ASTBC-SVD scheme may achieve an additional coding gain due to its higher product distance with the aid of the block code employed. In conjunction with SVD, the “water-filling” approach can be employed for adaptively distributing the transmitted power to the various antennas transmit according to the channel conditions, in order to further enhance the attainable performance. Since a codeword constituted by Nt symbols is transmitted in a single time slot by mapping the Nt symbols to the Nt transmit antennas in the spatial domain, the attainable performance of the ASTBC-SVD scheme does not degrade, when the channel impulse response values vary from one time slot to the next. Hence, the proposed ASTBC-SVD scheme is attractive in the context of both uncorrelated and correlated Rayleigh fading channels. The performance of the proposed scheme was evaluated, when communicating over uncorrelated Rayleigh fading channels. Explicitly, an Eb/N0 gain of 2.5 dB was achieved by the proposed ASTBC-SVD scheme against Alamouti’s scheme [1], when employing Nt = Nr = 2 in conjunction with 8PSK.
1210-1214
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Yeap, B.L.
235ca05f-15be-46ae-952f-604b15dbf849
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Yeap, B.L.
235ca05f-15be-46ae-952f-604b15dbf849
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Ng, S.X., Yeap, B.L. and Hanzo, L. (2005) Full-Rate, Full-Diversity Adaptive Space Time Block Coding for Transmission over Rayleigh Fading Channels At IEEE VTC'05 (Spring), Sweden. 30 May - 01 Jun 2005. , pp. 1210-1214.

Record type: Conference or Workshop Item (Paper)

Abstract

A full-rate, full-diversity Adaptive Space Time Block Coding (ASTBC) scheme based on Singular Value Decomposition (SVD) is proposed for transmission over Rayleigh fading channels. The ASTBC-SVD scheme advocated is capable of providing both full-rate and full-diversity for any number of transmit antennas, Nt, provided that the number of receive antennas, Nr, equals to Nt. Furthermore, the ASTBC-SVD scheme may achieve an additional coding gain due to its higher product distance with the aid of the block code employed. In conjunction with SVD, the “water-filling” approach can be employed for adaptively distributing the transmitted power to the various antennas transmit according to the channel conditions, in order to further enhance the attainable performance. Since a codeword constituted by Nt symbols is transmitted in a single time slot by mapping the Nt symbols to the Nt transmit antennas in the spatial domain, the attainable performance of the ASTBC-SVD scheme does not degrade, when the channel impulse response values vary from one time slot to the next. Hence, the proposed ASTBC-SVD scheme is attractive in the context of both uncorrelated and correlated Rayleigh fading channels. The performance of the proposed scheme was evaluated, when communicating over uncorrelated Rayleigh fading channels. Explicitly, an Eb/N0 gain of 2.5 dB was achieved by the proposed ASTBC-SVD scheme against Alamouti’s scheme [1], when employing Nt = Nr = 2 in conjunction with 8PSK.

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More information

Published date: 2005
Additional Information: Event Dates: 30 May - 1 June 2005
Venue - Dates: IEEE VTC'05 (Spring), Sweden, 2005-05-30 - 2005-06-01
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 261658
URI: http://eprints.soton.ac.uk/id/eprint/261658
PURE UUID: 02c9b9f9-4253-4d5d-80d5-00db3a9a4e19
ORCID for S.X. Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 14 Dec 2005
Last modified: 18 Jul 2017 09:00

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Contributors

Author: S.X. Ng ORCID iD
Author: B.L. Yeap
Author: L. Hanzo ORCID iD

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