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Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming

Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming
Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming
Eigen-beamforming is capable of providing attractive performance gains in the context of Multiple-Input Multiple-Output (MIMO) systems, provided that accurate Channel State Information (CSI) is available. However, when a realistic pilot-based channel predictor is used for acquiring the CSI, a significant performance degradation may be imposed by the phase-ambiguity inherent in the estimated eigen-vectors. In this contribution, both sophisticated Coded Modulation (CM) schemes and differentially encoded CM schemes are employed for assisting the operation of the eigen-beamformer, when employing a minimum mean square error based pilot-assisted channel predictor. It is shown that differentially encoded CM schemes are capable of assisting the eigen-beamformer in attaining a coding gain of about 6.5 dBs, when communicating over correlated Rayleigh fading channels.
1742-1746
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Liu, W.
af656440-51e8-45c8-b694-a802e71b671e
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Liu, W.
af656440-51e8-45c8-b694-a802e71b671e
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Ng, S.X., Liu, W., Yang, L-L. and Hanzo, L. (2007) Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming At IEEE VTC'07 (Spring). 22 - 25 Apr 2007. , pp. 1742-1746.

Record type: Conference or Workshop Item (Paper)

Abstract

Eigen-beamforming is capable of providing attractive performance gains in the context of Multiple-Input Multiple-Output (MIMO) systems, provided that accurate Channel State Information (CSI) is available. However, when a realistic pilot-based channel predictor is used for acquiring the CSI, a significant performance degradation may be imposed by the phase-ambiguity inherent in the estimated eigen-vectors. In this contribution, both sophisticated Coded Modulation (CM) schemes and differentially encoded CM schemes are employed for assisting the operation of the eigen-beamformer, when employing a minimum mean square error based pilot-assisted channel predictor. It is shown that differentially encoded CM schemes are capable of assisting the eigen-beamformer in attaining a coding gain of about 6.5 dBs, when communicating over correlated Rayleigh fading channels.

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Published date: April 2007
Additional Information: Event Dates: 22-25 April 2007
Venue - Dates: IEEE VTC'07 (Spring), 2007-04-22 - 2007-04-25
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 263940
URI: http://eprints.soton.ac.uk/id/eprint/263940
PURE UUID: ef32095e-7a50-4b99-ad27-988c411bc6f0
ORCID for S.X. Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for L-L. Yang: ORCID iD orcid.org/0000-0002-2032-9327
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 26 Apr 2007
Last modified: 18 Jul 2017 07:41

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Contributors

Author: S.X. Ng ORCID iD
Author: W. Liu
Author: L-L. Yang ORCID iD
Author: L. Hanzo ORCID iD

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