Pilot-aided carrier phase recovery for M-QAM using superscalar parallelization based PLL
In this paper, we present a carrier phase recovery (CPR) algorithm using a modified superscalar parallelization based phase locked loop (M-SSP-PLL) combined with a maximum-likelihood (ML) phase estimation. Compared to the original SSP-PLL, M-SSP-PLL + ML reduces the required buffer size using a nove...
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| Published in: | Optics express Vol. 20; no. 17; p. 19599 |
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| Main Authors: | , , , , , , |
| Format: | Journal Article |
| Language: | English |
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United States
13.08.2012
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| ISSN: | 1094-4087, 1094-4087 |
| Online Access: | Get full text |
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| Abstract | In this paper, we present a carrier phase recovery (CPR) algorithm using a modified superscalar parallelization based phase locked loop (M-SSP-PLL) combined with a maximum-likelihood (ML) phase estimation. Compared to the original SSP-PLL, M-SSP-PLL + ML reduces the required buffer size using a novel superscalar structure. In addition, by removing the differential coding/decoding and employing ML phase recovery it also improves the performance. In simulation, we show that the laser linewidth tolerance of M-SSP-PLL + ML is comparable to blind phase search (BPS) algorithm, which is known to be one of the best CPR algorithms in terms of performance for arbitrary QAM formats. In 28 Gbaud QPSK (112 Gb/s) and 16-QAM (224 Gb/s), and 7 Gbaud 64-QAM (84 Gb/s) experiments, it is also demonstrated that M-SSP-PLL + ML can increase the transmission distance by at least 12% compared to BPS for each of them. Finally, the computational complexity is discussed and a significant reduction is shown for our algorithm with respect to BPS. |
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| AbstractList | In this paper, we present a carrier phase recovery (CPR) algorithm using a modified superscalar parallelization based phase locked loop (M-SSP-PLL) combined with a maximum-likelihood (ML) phase estimation. Compared to the original SSP-PLL, M-SSP-PLL + ML reduces the required buffer size using a novel superscalar structure. In addition, by removing the differential coding/decoding and employing ML phase recovery it also improves the performance. In simulation, we show that the laser linewidth tolerance of M-SSP-PLL + ML is comparable to blind phase search (BPS) algorithm, which is known to be one of the best CPR algorithms in terms of performance for arbitrary QAM formats. In 28 Gbaud QPSK (112 Gb/s) and 16-QAM (224 Gb/s), and 7 Gbaud 64-QAM (84 Gb/s) experiments, it is also demonstrated that M-SSP-PLL + ML can increase the transmission distance by at least 12% compared to BPS for each of them. Finally, the computational complexity is discussed and a significant reduction is shown for our algorithm with respect to BPS.In this paper, we present a carrier phase recovery (CPR) algorithm using a modified superscalar parallelization based phase locked loop (M-SSP-PLL) combined with a maximum-likelihood (ML) phase estimation. Compared to the original SSP-PLL, M-SSP-PLL + ML reduces the required buffer size using a novel superscalar structure. In addition, by removing the differential coding/decoding and employing ML phase recovery it also improves the performance. In simulation, we show that the laser linewidth tolerance of M-SSP-PLL + ML is comparable to blind phase search (BPS) algorithm, which is known to be one of the best CPR algorithms in terms of performance for arbitrary QAM formats. In 28 Gbaud QPSK (112 Gb/s) and 16-QAM (224 Gb/s), and 7 Gbaud 64-QAM (84 Gb/s) experiments, it is also demonstrated that M-SSP-PLL + ML can increase the transmission distance by at least 12% compared to BPS for each of them. Finally, the computational complexity is discussed and a significant reduction is shown for our algorithm with respect to BPS. In this paper, we present a carrier phase recovery (CPR) algorithm using a modified superscalar parallelization based phase locked loop (M-SSP-PLL) combined with a maximum-likelihood (ML) phase estimation. Compared to the original SSP-PLL, M-SSP-PLL + ML reduces the required buffer size using a novel superscalar structure. In addition, by removing the differential coding/decoding and employing ML phase recovery it also improves the performance. In simulation, we show that the laser linewidth tolerance of M-SSP-PLL + ML is comparable to blind phase search (BPS) algorithm, which is known to be one of the best CPR algorithms in terms of performance for arbitrary QAM formats. In 28 Gbaud QPSK (112 Gb/s) and 16-QAM (224 Gb/s), and 7 Gbaud 64-QAM (84 Gb/s) experiments, it is also demonstrated that M-SSP-PLL + ML can increase the transmission distance by at least 12% compared to BPS for each of them. Finally, the computational complexity is discussed and a significant reduction is shown for our algorithm with respect to BPS. |
| Author | El-Sahn, Ziad A. Morsy-Osman, Mohamed Mousa-Pasandi, Mohammad E. Chagnon, Mathieu Plant, David V. Xu, Xian Zhuge, Qunbi |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/23038601$$D View this record in MEDLINE/PubMed |
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| References | Ip (oe-20-17-19599-R5) 2007; 25 Taylor (oe-20-17-19599-R3) 2009; 27 Gao (oe-20-17-19599-R7) 2011; 19 Pfau (oe-20-17-19599-R4) 2009; 27 Zhou (oe-20-17-19599-R8) 2010; 22 Gnauck (oe-20-17-19599-R2) 2012; 30 Fatadin (oe-20-17-19599-R6) 2010; 22 Chen (oe-20-17-19599-R10) 2011; 29 Fatadin (oe-20-17-19599-R9) 2009; 27 Winzer (oe-20-17-19599-R1) 2010; 28 |
| References_xml | – volume: 28 start-page: 547 year: 2010 ident: oe-20-17-19599-R1 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2009.2031922 – volume: 29 start-page: 2533 year: 2011 ident: oe-20-17-19599-R10 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2011.2160153 – volume: 27 start-page: 989 year: 2009 ident: oe-20-17-19599-R4 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2008.2010511 – volume: 27 start-page: 3042 year: 2009 ident: oe-20-17-19599-R9 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2009.2021961 – volume: 19 start-page: 21717 year: 2011 ident: oe-20-17-19599-R7 publication-title: Opt. Express doi: 10.1364/OE.19.021717 – volume: 25 start-page: 2675 year: 2007 ident: oe-20-17-19599-R5 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2007.902118 – volume: 30 start-page: 532 year: 2012 ident: oe-20-17-19599-R2 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2011.2175200 – volume: 22 start-page: 1051 year: 2010 ident: oe-20-17-19599-R8 publication-title: IEEE Photon. Technol. Lett. doi: 10.1109/LPT.2010.2049644 – volume: 22 start-page: 631 year: 2010 ident: oe-20-17-19599-R6 publication-title: IEEE Photon. Technol. Lett. doi: 10.1109/LPT.2010.2043524 – volume: 27 start-page: 901 year: 2009 ident: oe-20-17-19599-R3 publication-title: J. Lightwave Technol. doi: 10.1109/JLT.2008.927778 |
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| Title | Pilot-aided carrier phase recovery for M-QAM using superscalar parallelization based PLL |
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