Apparatus and method for supporting distortionless vector...

Details Apparatus and method for supporting distortionless vector... Apparatus and method for supporting distortionless vector...

2011-06-07

2011-06-07

Phu, Phuong (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S296000, C375S261000, C375S279000, C375S298000, C375S308000, C455S450000, C455S562100

Reexamination Certificate

active

07957479

ABSTRACT:
An apparatus and method for supporting distortionless vector perturbation in a Multi-Input Multi-Output (MIMO) system are provided. The apparatus includes a transmitter for supporting distortionless vector perturbation in a MIMO system. The transmitter includes a label inserter for generating a label and for inserting the label into a user information bit, a scrambler for scrambling the user information bit inserted with the label and for generating N independent candidate sequences, a modulator for modulating the N independent candidate sequences according to a modulation scheme and a vector perturbation unit for adding a limited offset vector so that the modulated symbols are mapped to a constellation point in a feasible region. The apparatus and method provide vector perturbation with improved performance and reduced computational complexity.

REFERENCES:
patent: 7317764 (2008-01-01), Hochwald et al.
patent: 2003/0215006 (2003-11-01), Raghothaman
patent: 2004/0253986 (2004-12-01), Hochwald et al.
patent: 2005/0043031 (2005-02-01), Cho et al.
patent: 2005/0195769 (2005-09-01), Kaewell et al.
patent: 2006/0251175 (2006-11-01), Reznik et al.
patent: 10-2007-0038150 (2007-04-01), None

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