Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems
This work addresses the timing synchronization aspects in a DC-biased optical OFDM (DCO-OFDM) system which is exploiting real trigonometric transform like discrete sine transform (DST). The striking notability is that without the necessity of Hermitian Symmetry criteria, the optical OFDM system take...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | ICT Express |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405959522000248 |
| _version_ | 1811277403854471168 |
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| author | Suseela Vappangi Vakamulla Venkata Mani |
| author_facet | Suseela Vappangi Vakamulla Venkata Mani |
| author_sort | Suseela Vappangi |
| collection | DOAJ |
| description | This work addresses the timing synchronization aspects in a DC-biased optical OFDM (DCO-OFDM) system which is exploiting real trigonometric transform like discrete sine transform (DST). The striking notability is that without the necessity of Hermitian Symmetry criteria, the optical OFDM system takes the advantage of real signal processing transformation techniques like DST. Furthermore, this paper compares the performance of timing synchronization algorithms exploiting the periodicity property of the DST-DCO-OFDM symbol with the training symbol-based STO estimation algorithm. Among the STO estimation algorithms, the training symbol-based STO estimation technique imparts a better mean square error when compared with that of the periodicity-based STO estimation algorithms. Moreover, this work validates the derived Cramer Rao Lower Bound (CRLB) for the timing errors. |
| first_indexed | 2024-04-13T00:15:08Z |
| format | Article |
| id | doaj.art-c2acc17115cd48db88ff872d2bcbdf5a |
| institution | Directory Open Access Journal |
| issn | 2405-9595 |
| language | English |
| last_indexed | 2024-04-13T00:15:08Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | ICT Express |
| spelling | doaj.art-c2acc17115cd48db88ff872d2bcbdf5a2022-12-22T03:10:57ZengElsevierICT Express2405-95952022-09-0183414418Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systemsSuseela Vappangi0Vakamulla Venkata Mani1Corresponding author at: School of Electronics Engineering, Vellore Institute of Technology, Amaravati (VIT-AP University), India.; School of Electronics Engineering, Vellore Institute of Technology, Amaravati, India; Electronics and Communication Engineering, National Institute of Technology, Warangal, IndiaSchool of Electronics Engineering, Vellore Institute of Technology, Amaravati, India; Electronics and Communication Engineering, National Institute of Technology, Warangal, IndiaThis work addresses the timing synchronization aspects in a DC-biased optical OFDM (DCO-OFDM) system which is exploiting real trigonometric transform like discrete sine transform (DST). The striking notability is that without the necessity of Hermitian Symmetry criteria, the optical OFDM system takes the advantage of real signal processing transformation techniques like DST. Furthermore, this paper compares the performance of timing synchronization algorithms exploiting the periodicity property of the DST-DCO-OFDM symbol with the training symbol-based STO estimation algorithm. Among the STO estimation algorithms, the training symbol-based STO estimation technique imparts a better mean square error when compared with that of the periodicity-based STO estimation algorithms. Moreover, this work validates the derived Cramer Rao Lower Bound (CRLB) for the timing errors.http://www.sciencedirect.com/science/article/pii/S2405959522000248VLCDST-DCO-OFDMSTOCRLB |
| spellingShingle | Suseela Vappangi Vakamulla Venkata Mani Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems ICT Express VLC DST-DCO-OFDM STO CRLB |
| title | Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems |
| title_full | Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems |
| title_fullStr | Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems |
| title_full_unstemmed | Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems |
| title_short | Impact of STO and STO-estimation in DST-DCO-OFDM-based visible light communication systems |
| title_sort | impact of sto and sto estimation in dst dco ofdm based visible light communication systems |
| topic | VLC DST-DCO-OFDM STO CRLB |
| url | http://www.sciencedirect.com/science/article/pii/S2405959522000248 |
| work_keys_str_mv | AT suseelavappangi impactofstoandstoestimationindstdcoofdmbasedvisiblelightcommunicationsystems AT vakamullavenkatamani impactofstoandstoestimationindstdcoofdmbasedvisiblelightcommunicationsystems |