Implementation of Blind Carrier Phase Recovery for Coherent Fiber-Optical Receivers
| dc.contributor.author | Börjesson, Erik | |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för data- och informationsteknik (Chalmers) | sv |
| dc.contributor.department | Chalmers University of Technology / Department of Computer Science and Engineering (Chalmers) | en |
| dc.date.accessioned | 2019-07-03T14:44:57Z | |
| dc.date.available | 2019-07-03T14:44:57Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | The use of higher-order modulation formats has been suggested as one way to increase the speed of fiber-optical systems. These formats are more sensitive to phase noise, which is why blind phase-search (BPS) has been suggested as one way to perform carrier recovery. In this thesis we demonstrate the feasibility of BPS by developing a hardware implementation and synthesizing it using a regular-Vt, 28nm standard cell library. The power consumption of the design, at a symbol rate of 40GBd, is found to be lower than 2.0 pJ/bit for 16QAM and lower than 3.1 pJ/bit for 64QAM. Higher symbol rates can also be used, without significantly affecting the energy/bit. Fixed-point aspects of the design are examined and we show that using 7 bits for 16QAM and 8 bits for 64QAM result in a penalty of less than 0.3 dB, compared to floating point. We also present a hardware-efficient method to approximately calculate the distance to the closest constellation point, without significantly affecting the bit-error rate (BER). Furthermore, the feasibility of joint processing of multiple channels sharing the same phase noise is evaluated and phase estimation is shown to consume approximately 5 times the power of the phase compensation. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12380/255143 | |
| dc.language.iso | eng | |
| dc.setspec.uppsok | Technology | |
| dc.subject | Informations- och kommunikationsteknik | |
| dc.subject | Data- och informationsvetenskap | |
| dc.subject | Information & Communication Technology | |
| dc.subject | Computer and Information Science | |
| dc.title | Implementation of Blind Carrier Phase Recovery for Coherent Fiber-Optical Receivers | |
| dc.type.degree | Examensarbete för masterexamen | sv |
| dc.type.degree | Master Thesis | en |
| dc.type.uppsok | H | |
| local.programme | Embedded electronic system design (MPEES), MSc |
Ladda ner
Original bundle
1 - 1 av 1
Hämtar...
- Namn:
- 255143.pdf
- Storlek:
- 2.27 MB
- Format:
- Adobe Portable Document Format
- Beskrivning:
- Fulltext