Projects per year
Abstract / Description of output
Photon counting detectors such as single-photon avalanche diode (SPAD) arrays can be utilized to improve the sensitivity of optical wireless communication (OWC) systems. However, the achievable data rate of SPAD-based OWC systems is strongly limited by the nonlinearity induced by SPAD dead time. In this work, the performance of SPAD-based OWC system with orthogonal frequency division multiplexing (OFDM) is investigated and compared with that of on-off keying (OOK). We employ nonlinear equalization, peak-to-average power ratio optimization by adjusting the OFDM clipping level, and adaptive bit and energy loading to achieve a record experimental data rate of 5 Gbps. The contrasting optimal regimes of operation of the two modulation schemes are also demonstrated.
Original language | English |
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Pages (from-to) | 2294-2297 |
Journal | Optics Letters |
Volume | 47 |
Issue number | 9 |
DOIs | |
Publication status | Published - 24 Apr 2022 |
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Dive into the research topics of '5 Gbps Optical Wireless Communication Using Commercial SPAD Array Receivers'. Together they form a unique fingerprint.Projects
- 2 Finished
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Terabit Bidirectional Multi-user Optical Wireless System (TOWS) for 6G LiFi
Haas, H. & Safari, M.
1/04/19 → 31/03/22
Project: Research
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Adaptive Reliable Receivers for Optical Wireless communication (ARROW)
Safari, M., Haas, H. & Henderson, R.
1/07/18 → 30/06/21
Project: Research