Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels
Joint Authors
Ferster, Laura
Gianni, Pablo
Corral-Briones, Graciela
Hueda, Mario R.
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-16
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Engineering Sciences and Information Technology
Information Technology and Computer Science
Abstract EN
This work presents a new efficient parallel carrier recovery architecture suitable for ultrahigh speed intradyne coherent optical receivers (e.g., ≥100 Gb/s) with quadrature amplitude modulation (QAM).
The proposed scheme combines a novel low-latency parallel digital phase locked loop (DPLL) with a feedforward carrier phase recovery (CPR) algorithm.
The new low-latency parallel DPLL is designed to compensate not only carrier frequency offset but also frequency fluctuations such as those induced by mechanical vibrations or power supply noise.
Such carrier frequency fluctuations must be compensated since they lead to higher phase error variance in traditional feedforward CPR techniques, significantly degrading the receiver performance.
In order to enable a parallel-processing implementation in multigigabit per second receivers, a new approximation to the DPLL computation is introduced.
The proposed technique reduces the latency within the feedback loop of the DPLL introduced by parallel processing, while at the same time it provides a bandwidth and capture range close to those achieved by a serial DPLL.
Simulation results demonstrate that the effects caused by frequency deviations can be eliminated with the proposed low latency parallel carrier recovery architecture.
American Psychological Association (APA)
Gianni, Pablo& Ferster, Laura& Corral-Briones, Graciela& Hueda, Mario R.. 2013. Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels. Journal of Electrical and Computer Engineering،Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-456581
Modern Language Association (MLA)
Gianni, Pablo…[et al.]. Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels. Journal of Electrical and Computer Engineering No. 2013 (2013), pp.1-14.
https://search.emarefa.net/detail/BIM-456581
American Medical Association (AMA)
Gianni, Pablo& Ferster, Laura& Corral-Briones, Graciela& Hueda, Mario R.. Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels. Journal of Electrical and Computer Engineering. 2013. Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-456581
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456581