Title :
Lattice Reduction Based Detection Algorithms in High Correlated MIMO-OFDM System
Author :
Lu, Xiaojia ; Silvola, Pirkka ; Juntti, Markku
Author_Institution :
Centre for Wireless Commun., Oulu Univ.
Abstract :
The lattice reduction (LR) aided detectors for multiple-input multiple-output (MIMO) systems have been shown to have a better performance than conventional linear detectors like zero forcing (ZF) or minimum mean square (MMSE) detectors. In this paper, we study the performance of the LR aided detectors for multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems in spatially correlated fading channels. Also, the computational complexity of the LR based linear detectors is studied with comparison to the conventional detectors. The simulation results show that the LR aided detectors are more robust to the spatial correlation than the conventional linear detectors and also have a low computational complexity close to the conventional linear detectors
Keywords :
MIMO communication; OFDM modulation; computational complexity; demodulation; fading channels; matrix algebra; computational complexity; high correlated MIMO-OFDM system; lattice reduction based detection algorithms; lattice reduction based linear detectors; multiple-input multiple-output systems; orthogonal frequency division multiplexing; spatially correlated fading channels; Computational complexity; Detection algorithms; Detectors; Fading; Lattices; MIMO; Maximum likelihood decoding; Maximum likelihood detection; OFDM modulation; Quadrature amplitude modulation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254001
