Robust ESB Beamforming with DD Correction

Ann-Chen CHANG  Jhih-Chung CHANG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E94-B   No.3   pp.841-843
Publication Date: 2011/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.841
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
adaptive array,  eigenspace,  pointing error,  decision-directed,  

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Summary: 
This letter deals with eigenspace-based (ESB) beamforming based on the decision-directed (DD) correction with robust capability. It has been shown that the output of the ESB beamformer includes the desired signal and noise under small pointing errors. In conjugation with DD and soft decision decoding scheme, the proposed approach can be used to form a robust DD-ESB beamformer without any specific training sequence. Computer simulations are provided to illustrate the effectiveness of the proposed beamformer.