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
April 2007
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.
IEEE VTC'07 (Spring), Dublin, Ireland.
22 - 25 Apr 2007.
.
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.
More information
Published date: April 2007
Additional Information:
Event Dates: 22-25 April 2007
Venue - Dates:
IEEE VTC'07 (Spring), Dublin, Ireland, 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
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Date deposited: 26 Apr 2007
Last modified: 18 Mar 2024 02:49
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