OFDM With Interleaved Subcarrier-Index Modulation

Author

Yue Xiao ; Shunshun Wang ; Lilin Dan ; Xia Lei ; Ping Yang ; Wei Xiang

Author_Institution

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

Volume

18

Issue

8

fYear

2014

fDate

Aug. 2014

Firstpage

1447

Lastpage

1450

Abstract

Orthogonal frequency division multiplexing with index modulation (OFDM-IM) is a recently developed technique which modulates part of the information bits using the indices of OFDM subcarriers. In this letter, a simple and efficient subcarrier-level interleaving scheme is introduced to improve the performance of conventional OFDM-IM through enlarging the Euclidean distances among the modulated symbols. Both theoretical analysis and simulation results are presented to show that the proposed OFDM with interleaved sucarrier-index modulation (OFDM-ISIM) can achieve better system performance than conventional OFDM-IM and OFDM with low-order modulation schemes such as binary phase shift keying, quadrature phase shift keying and 16 quadrature amplitude modulation.

Keywords

OFDM modulation; geometry; quadrature amplitude modulation; quadrature phase shift keying; subcarrier multiplexing; Euclidean distances; OFDM subcarriers; OFDM-IM; OFDM-ISIM; binary phase shift keying; interleaved subcarrier-index modulation; orthogonal frequency division multiplexing; quadrature amplitude modulation; quadrature phase shift keying; subcarrier-level interleaving scheme; Binary phase shift keying; Bit error rate; Euclidean distance; Indexes; OFDM; Interleaved subcarrier-index modulation; maximum-likelihood detection; orthogonal frequency division multiplexing;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2014.2332340

Filename

6841601