PON Downstream Scheme Supporting Simultaneously Different ONU Categories
We propose a PON downstream scheme simultaneously supporting different categories of ONUs (e.g. different generations), whereby lower-category ONUs employ components with limited bandwidth. Our solution relies upon CDM utilizing Hadamard codes and the spectral properties of its code words. We propos...
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Veröffentlicht in: | IEEE photonics technology letters 2023-11, Vol.35 (21), p.1-1 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We propose a PON downstream scheme simultaneously supporting different categories of ONUs (e.g. different generations), whereby lower-category ONUs employ components with limited bandwidth. Our solution relies upon CDM utilizing Hadamard codes and the spectral properties of its code words. We propose a novel code allocation scheme and provide two optimization approaches by employing an optimized secondary spreading code and a power allocation scheme to improve the system performance. |
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ISSN: | 1041-1135 1941-0174 |
DOI: | 10.1109/LPT.2023.3308372 |