Multi-dimensional detector for receiver of mimo system
AssigneeElectronics and Telecommunications Research Institute
InventorsYu-Ro LEE, Jong-Ee OH, Minho CHEONG, Sok-Kyu LEE
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Abstract
Provided are a multi-dimensional detector for a receiver of an MIMO system and a method thereof. The multi-dimensional detector includes a first symbol detecting unit for calculating symbol distance values using an upper triangular matrix (R) obtained from QR decomposition to detect an mth symbol; a symbol deciding unit for deciding a symbol having a minimum distance value among the calculated symbol distance values from the first symbol detecting unit; and a second symbol detecting unit for calculating symbol distance values using an updated received signal y and the upper triangular matrix R to detect a (m−1)th symbol.
Claims19
A multi-dimensional detector for a receiver of a multiple input multiple output (MIMO) system, comprising:
- a first symbol detecting means for calculating symbol distance values using an upper triangular matrix (R) obtained from QR decomposition to detect an mth symbol;
- a symbol deciding means for deciding a symbol having a minimum distance value among the calculated symbol distance values from the first symbol detecting means;
- and
- a second symbol detecting means for calculating symbol distance values based on an updated received signal y and the upper triangular matrix R to detect a (m−1)th symbol.
A multi-dimensional detecting method for a receiver of a multiple input multiple output (MIMO) system, comprising:
- calculating symbol distance values using an upper triangular matrix R obtained from QR decomposition to detect an mth symbol;
- deciding a symbol having a minimum distance value among the calculated symbol distance values;
- and
- calculating symbol distance values using an updated received signal y and the upper triangular matrix R to detect a (m−1)th symbol.
A receiver of a multiple input multiple output (MIMO) system, comprising:
- a QR decomposing means for decomposing a received signal to an unitary matrix Q and an upper triangular matrix R;
- and
- a multi-dimensional detecting means for deciding an mth symbol and a (m−1)th symbol through multi-dimensional detection for the output of the QR decomposing means,
- wherein the multi-dimensional detecting means includes:
- a first symbol detecting means for calculating symbol distance values using an upper triangular matrix (R) obtained from QR decomposition to detect an mth symbol;
- a symbol deciding means for deciding a symbol having a minimum distance value among the calculated symbol distance values from the first symbol detecting means;
- and
- a second symbol detecting means for calculating symbol distance values using an updated received signal y and the upper triangular matrix R to detect a (M−1)th symbol.
Dependencies are inferred from the claim text.