Title :
An Improved Detection Based on Lattice Reduction in MIMO Systems
Author :
Wang, Xinglin ; He, Zhiqiang ; Niu, Kai ; Wu, Weiling ; Zhang, Xin
Author_Institution :
Beijing Univ. of Posts & Telecommun.
Abstract :
In this paper, list detection based on lattice reduction (LDLR) in MIMO systems is proposed. By generating a list of candidate transmit symbol vectors we can improve the performance of linear detection based on lattice reduction and successive interference cancellation based on lattice reduction significantly. The performance improvement is demonstrated by computer simulations, which also show that a list with two entries is enough for the MMSE based detection to approach the maximum likelihood (ML) detection at high signal-to-noise ratio (SNR) in case of (4,4) MIMO
Keywords :
MIMO systems; antenna arrays; interference suppression; least mean squares methods; maximum likelihood detection; radiocommunication; radiofrequency interference; MIMO systems; MMSE; SNR; list detection based on lattice reduction; maximum likelihood detection; multiple-antenna system; signal-to-noise ratio; successive interference cancellation; transmit symbol vectors; Gaussian noise; Lattices; MIMO; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Mobile communication; Rayleigh channels; Receiving antennas; Transmitting antennas;
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.2006.254017
