Abstract
In this letter, we present filtered asymmetrically clipped optical-orthogonal frequency-division multiplexing with index modulation (FACO-OFDM-IM) for optical wireless systems. FACO-OFDM-IM optimizes the baseband bandwidth by filtering out-of-band spectral leakage caused by clipping. Additionally, IM enables FACO-OFDM-IM to impart granularity for spectral efficiency (SE)/energy efficiency (EE) trade-off and to achieve higher SE over established counterparts. Hereby, we elucidate the transceiver architecture, SE/EE trade-off, and bit-error-rate (BER). Simulation results establish that FACO-OFDM-IM attains higher spectral efficiences than classical IM approaches and outperforms them for low alphabet cardinalities while marginally increasing the complexity.
Original language | English (US) |
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Article number | 9312121 |
Pages (from-to) | 1592-1595 |
Number of pages | 4 |
Journal | IEEE Communications Letters |
Volume | 25 |
Issue number | 5 |
DOIs | |
State | Published - May 2021 |
Keywords
- Discrete Fourier transform
- Internet-of-Things
- index modulation
- intensity modulation and direct detection
- optical wireless systems
- orthogonal frequency-division multiplexing
ASJC Scopus subject areas
- Modeling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering