Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection
Compared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a better balance between optical power efficiency and spe...
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IEEE
2023-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10285333/ |
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| author | Wei-Wen Hu |
| author_facet | Wei-Wen Hu |
| author_sort | Wei-Wen Hu |
| collection | DOAJ |
| description | Compared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a better balance between optical power efficiency and spectrum efficiency. However, both the traditional ADO-OFDM and ADO-OFDM with iteration receiver suffer from an error floor issue when a lower DC bias is allocated to the DCO-OFDM branch. In this paper, we propose an enhanced receiving technique for ADO-OFDM that introduces an adjacent symbol detection (ASD) scheme in the DCO-OFDM branch of ADO-OFDM, named as ASD-based ADO-OFDM (ASD-ADO-OFDM). Simulation results indicate that the proposed ASD-ADO-OFDM provides a lower bit error rate performance at lower DC bias and fewer computational complexity compared with traditional ADO-OFDM with iteration receiver. |
| format | Article |
| id | doaj-art-5afb494d5bb94d6a99d6435e1e8536b8 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-5afb494d5bb94d6a99d6435e1e8536b82025-08-20T03:32:57ZengIEEEIEEE Photonics Journal1943-06552023-01-011561710.1109/JPHOT.2023.332436810285333Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol DetectionWei-Wen Hu0https://orcid.org/0000-0002-2418-4460Department of Electrical Engineering, National Formosa University, Yunlin, TaiwanCompared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a better balance between optical power efficiency and spectrum efficiency. However, both the traditional ADO-OFDM and ADO-OFDM with iteration receiver suffer from an error floor issue when a lower DC bias is allocated to the DCO-OFDM branch. In this paper, we propose an enhanced receiving technique for ADO-OFDM that introduces an adjacent symbol detection (ASD) scheme in the DCO-OFDM branch of ADO-OFDM, named as ASD-based ADO-OFDM (ASD-ADO-OFDM). Simulation results indicate that the proposed ASD-ADO-OFDM provides a lower bit error rate performance at lower DC bias and fewer computational complexity compared with traditional ADO-OFDM with iteration receiver.https://ieeexplore.ieee.org/document/10285333/Direct currentADO-OFDMHermitian symmetryDCO-OFDM |
| spellingShingle | Wei-Wen Hu Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection IEEE Photonics Journal Direct current ADO-OFDM Hermitian symmetry DCO-OFDM |
| title | Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection |
| title_full | Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection |
| title_fullStr | Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection |
| title_full_unstemmed | Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection |
| title_short | Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection |
| title_sort | enhanced performance of asymmetrically clipped dc biased optical ofdm systems using adjacent symbol detection |
| topic | Direct current ADO-OFDM Hermitian symmetry DCO-OFDM |
| url | https://ieeexplore.ieee.org/document/10285333/ |
| work_keys_str_mv | AT weiwenhu enhancedperformanceofasymmetricallyclippeddcbiasedopticalofdmsystemsusingadjacentsymboldetection |