Title :
A Quantization Scheme for Lattice-Reduction Aided MIMO Detection
Author :
Nguyen, Tien Duc ; Fujino, Tadashi ; Tran, Xuan Nam
Author_Institution :
Univ. of Electro-Commun., Tokyo
Abstract :
This paper aims at improving bit error rate (BER) performance of lattice reduction aided (LRA) linear detectors for multiple input multiple output (MIMO) wireless systems. Specifically, we present an improved quantization scheme for LRA detectors which can generate a set of candidate symbols from the original LRA estimated symbol. From these symbols, decisions are made in term of the minimum Euclidean distance. It is shown by simulation that the method provides significant BER performance improvement at the cost of small additional complexity.
Keywords :
MIMO communication; error statistics; fading channels; quantisation (signal); receiving antennas; transmitting antennas; Euclidean distance; MIMO detection; bit error rate; fading channel; lattice-reduction; linear detectors; multiple input multiple output systems; quantization scheme; receive antenna; transmit antenna; wireless systems; Bit error rate; Computational complexity; Costs; Detectors; Euclidean distance; Lattices; MIMO; Maximum likelihood detection; Quantization; Receiving antennas; MIMO; MMSE; ZF; lattice detection; lattice reduction; spatial multiplexing;
Conference_Titel :
Signal Processing and Information Technology, 2007 IEEE International Symposium on
Conference_Location :
Giza
Print_ISBN :
978-1-4244-1835-0
Electronic_ISBN :
978-1-4244-1835-0
DOI :
10.1109/ISSPIT.2007.4458031
