LLL Reduction Achieves the Receive Diversity in MIMO Decoding

Author

Taherzadeh, Mahmoud ; Mobasher, Amin ; Khandani, Amir K.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON

Volume

53

Issue

12

fYear

2007

Firstpage

4801

Lastpage

4805

Abstract

Diversity order is an important measure for the performance of communication systems over multiple-input-multiple-output (MIMO) fading channels. In this correspondence, we prove that in MIMO multiple- access systems (or MIMO point-to-point systems with V-BLAST transmission), lattice-reduction-aided decoding achieves the maximum receive diversity (which is equal to the number of receive antennas). Also, we prove that the naive lattice decoding (which discards the out-of-region decoded points) achieves the maximum diversity.

Keywords

MIMO communication; channel coding; decoding; diversity reception; fading channels; multi-access systems; MIMO decoding; lattice decoding; lattice-reduction-aided decoding; multiple-input-multiple-output multiple-access systems; receive diversity; Antenna measurements; Decoding; Fading; Lattices; MIMO; Polynomials; Receiving antennas; Space technology; Transmitting antennas; Vectors; LLL lattice-basis reduction; Lattice decoding; V-BLAST; multiple-input–multiple-output (MIMO) fading channels; recieve diversity;

fLanguage

English

Journal_Title

Information Theory, IEEE Transactions on

Publisher

ieee

ISSN

0018-9448

Type

jour

DOI

10.1109/TIT.2007.909169

Filename

4385785