Phase rotation-based precoding for spatial modulation systems

Author

Ping Yang ; Yue Xiao ; Bo Zhang ; El-Hajjar, Mohammed ; Shaoqian Li ; Hanzo, Lajos

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

9

Issue

10

fYear

2015

fDate

7 2 2015

Firstpage

1315

Lastpage

1323

Abstract

In this study, the authors investigate the benefits of phase-rotation-assisted precoding (PRP) technique in spatial modulation (SM) systems, which are based on maximum free distance d_min. First, a closed-form solution of the maximum-d_min PRP matrix is derived for the scenario of having two transmit antennas (N_t = 2). Moreover, two numerical methods are proposed for dealing with the case of N_t > 2. The complexity of the proposed algorithms is presented. The authors simulation results show that the proposed PRP algorithms provide beneficial bit error ratio performance improvements compared with both the conventional SM and with the existing adaptive SM.

Keywords

error statistics; matrix algebra; modulation; numerical analysis; precoding; transmitting antennas; PRP algorithms; PRP matrix; PRP technique; SM systems; adaptive SM; bit error ratio performance; closed-form solution; numerical methods; phase rotation based precoding; spatial modulation systems; transmit antennas;

fLanguage

English

Journal_Title

Communications, IET

Publisher

iet

ISSN

1751-8628

Type

jour

DOI

10.1049/iet-com.2014.1065

Filename

7137610