SPAD-Based Optical Wireless Communication with ACO-OFDM
Abstract
The sensitivity of the optical wireless communication (OWC) can be effectively improved by employing the highly sensitive single-photon avalanche diode (SPAD) arrays. However, the nonlinear distortion introduced by the dead time strongly limits the throughput of the SPAD-based OWC systems. Optical orthogonal frequency division multiplexing (OFDM) can be employed in the systems with SPAD arrays to improve the spectral efficiency. In this work, a theoretical performance analysis of SPAD-based OWC system with asymmetrically-clipped optical OFDM (ACO-OFDM) is presented. The impact of the SPAD nonlinearity on the system performance is investigated. In addition, the comparison of the considered scheme with direct-current-biased optical OFDM (DCO-OFDM) is presented showing the distinct reliable operation regimes of the two schemes. In the low power regimes, ACO-OFDM outperforms DCO-OFDM; whereas, the latter is more preferable in the high power regimes.
Cite
@article{arxiv.2210.14101,
title = {SPAD-Based Optical Wireless Communication with ACO-OFDM},
author = {Shenjie Huang and Cheng Chen and Mohammad Dehghani Soltani and Robert Henderson and Harald Haas and Majid Safari},
journal= {arXiv preprint arXiv:2210.14101},
year = {2022}
}
Comments
arXiv admin note: substantial text overlap with arXiv:2206.02062