Open AccessFlexible NOMA-based NOHO-OFDM scheme for visible light communication with iterative interference cancellation
Author(s) -
Xuan Huang,
Fang Yang,
Pan Chen,
Jian Song
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.420848
Subject(s) - orthogonal frequency division multiplexing , visible light communication , single antenna interference cancellation , interference (communication) , computer science , bit error rate , noma , modulation (music) , scheme (mathematics) , electronic engineering , multiplexing , algorithm , telecommunications , mathematics , optics , decoding methods , engineering , physics , channel (broadcasting) , telecommunications link , mathematical analysis , light emitting diode , acoustics
In this paper, a flexible non-orthogonal multiple access (NOMA) based optical orthogonal frequency division multiplexing (OFDM) modulation scheme, called non-orthogonal hybrid optical OFDM (NOHO-OFDM), is proposed to increase the achievable data rate of the visible light communication system with high efficiency. In addition, a receiver with iteratively successive interference cancellation (ISIC) is investigated, which can reduce the estimation error. Then, the achievable data rate of the proposed NOHO-OFDM with the ISIC scheme is analyzed. Experiment results show that the bit error rate of the NOHO-OFDM can be significantly reduced by the proposed ISIC scheme, and the NOHO-OFDM is superior than the orthogonal scheme in terms of data rates. Meanwhile, simulation results show that the achievable data rate region of the proposed NOHO-OFDM scheme is larger than that of the orthogonal counterpart.