Feedforward-based free-space optical communication
We propose to use 1-bit feedforward information at the free-space optical (FSO) receiver to improve its error performance. We concentrate upon M-ary pulse amplitude modulation (PAM) signaling and design an error-optimal PAM constellation for providing efficient 1-bit feedforward information to the receiver. A maximum likelihood detector is derived, and the symbol error rate of the considered FSO system is analytically obtained in closed form by using a union-bound approach. It is shown by using the analysis and simulation that 1-bit feedforward can significantly improve the performance of PAM in FSO systems.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:60 |
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| Enthalten in: |
Applied optics - 60(2021), 11 vom: 10. Apr., Seite 3155-3161 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bhatnagar, Manav R [VerfasserIn] |
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| Anmerkungen: |
Date Revised 14.05.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/AO.419288 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM325346224 |
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| 520 | |a We propose to use 1-bit feedforward information at the free-space optical (FSO) receiver to improve its error performance. We concentrate upon M-ary pulse amplitude modulation (PAM) signaling and design an error-optimal PAM constellation for providing efficient 1-bit feedforward information to the receiver. A maximum likelihood detector is derived, and the symbol error rate of the considered FSO system is analytically obtained in closed form by using a union-bound approach. It is shown by using the analysis and simulation that 1-bit feedforward can significantly improve the performance of PAM in FSO systems | ||
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