OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System
In this paper, we proposed a coding scheme based on orthogonal cyclic transpose (OCT) precoding combined with low-density parity check (LDPC) code to improve the transmission performance of 128-quadrature amplitude modulation multiband orthogonal-frequency-division-multiplexing ultrawide band over f...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2020/1540540 |
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| _version_ | 1832546822958088192 |
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| author | Changqing Xiang Xi Yang Xiaojun Zhu Qiong He Renmin Zhang Zhiyang Xiang |
| author_facet | Changqing Xiang Xi Yang Xiaojun Zhu Qiong He Renmin Zhang Zhiyang Xiang |
| author_sort | Changqing Xiang |
| collection | DOAJ |
| description | In this paper, we proposed a coding scheme based on orthogonal cyclic transpose (OCT) precoding combined with low-density parity check (LDPC) code to improve the transmission performance of 128-quadrature amplitude modulation multiband orthogonal-frequency-division-multiplexing ultrawide band over fiber (128 QAM MB-OFDM UWBoF) system. The proposed scheme could not only improve the performance of the system but also average the signal-to-noise ratio (SNR) of subcarriers and reduce the difference among subchannels in practical application. The simulation results showed that compared with the traditional scheme, the receiver performance of this scheme was improved by 2.7 dB when the LDPC-coding rate was 87.5% through 70 km standard single mode fiber (SSMF) transmission and the bit error rate (BER) was 3.8 × 10−3. Besides, the constellation distribution was more convergent and uniform. |
| format | Article |
| id | doaj-art-984a9b4e2a6249c79f7f244ac2484114 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-984a9b4e2a6249c79f7f244ac24841142025-02-03T06:46:57ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242020-01-01202010.1155/2020/15405401540540OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF SystemChangqing Xiang0Xi Yang1Xiaojun Zhu2Qiong He3Renmin Zhang4Zhiyang Xiang5College of Information Science and Engineering, Jishou University, Jishou, Hunan 416000, ChinaCollege of Information Science and Engineering, Jishou University, Jishou, Hunan 416000, ChinaSchool of Software Engineering, Jiangxi University of Science and Technology, Nanchang, Jiangxi 330013, ChinaCollege of Information Science and Engineering, Jishou University, Jishou, Hunan 416000, ChinaCollege of Information Science and Engineering, Jishou University, Jishou, Hunan 416000, ChinaCollege of Information Science and Engineering, Jishou University, Jishou, Hunan 416000, ChinaIn this paper, we proposed a coding scheme based on orthogonal cyclic transpose (OCT) precoding combined with low-density parity check (LDPC) code to improve the transmission performance of 128-quadrature amplitude modulation multiband orthogonal-frequency-division-multiplexing ultrawide band over fiber (128 QAM MB-OFDM UWBoF) system. The proposed scheme could not only improve the performance of the system but also average the signal-to-noise ratio (SNR) of subcarriers and reduce the difference among subchannels in practical application. The simulation results showed that compared with the traditional scheme, the receiver performance of this scheme was improved by 2.7 dB when the LDPC-coding rate was 87.5% through 70 km standard single mode fiber (SSMF) transmission and the bit error rate (BER) was 3.8 × 10−3. Besides, the constellation distribution was more convergent and uniform.http://dx.doi.org/10.1155/2020/1540540 |
| spellingShingle | Changqing Xiang Xi Yang Xiaojun Zhu Qiong He Renmin Zhang Zhiyang Xiang OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System Advances in Condensed Matter Physics |
| title | OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System |
| title_full | OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System |
| title_fullStr | OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System |
| title_full_unstemmed | OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System |
| title_short | OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System |
| title_sort | oct precoding combined with ldpc coding scheme for 128 qam mb ofdm uwbof system |
| url | http://dx.doi.org/10.1155/2020/1540540 |
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