Abstract
A direct current (DC) bias is required in DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM) to enable visible light communication (VLC). However, the addition of the DC-bias leads to electrical and optical power inefficiency. An experimental demonstration of an energy efficient superposition modulation technique is presented based on augmented spectral efficiency discrete multitone (ASE-DMT) transmission. Significant energy savings of up to 14.27 dB are achieved in comparison with DCO-OFDM at low DC bias. The results highlight the potential of ASE-DMT in spectrum and energy efficient light fidelity (LiFi) systems.
| Original language | English |
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| Title of host publication | 2019 IEEE International Conference on Communications Workshops (ICC Workshops) |
| Publisher | IEEE Xplore |
| ISBN (Electronic) | 978-1-7281-2373-8, 978-1-7281-2372-1 |
| ISBN (Print) | 978-1-7281-2374-5 |
| DOIs | |
| Publication status | Published - 11 Jul 2019 |
| Event | 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 - Shanghai, China Duration: 20 May 2019 → 24 May 2019 |
Conference
| Conference | 2019 IEEE International Conference on Communications Workshops, ICC Workshops 2019 |
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| Country/Territory | China |
| City | Shanghai |
| Period | 20/05/19 → 24/05/19 |
Keywords
- OFDM
- ASE-DMT