NDLI: Linewidth tolerance of digital coherent receiver using Viterbi & Viterbi RF carrier recovery for radio-over-fibre links

Content Provider	IEEE Xplore Digital Library
Author	Gonzalez, N.G. Zibar, D. Larsen, K.J. Monroy, I.T.
Copyright Year	2009
Description	Author affiliation: DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark (Gonzalez, N.G.; Zibar, D.; Larsen, K.J.; Monroy, I.T.)
Abstract	Transport and distribution of wireless signals over fibre, so called Radio-over-Fibre (RoF), is an important technology in order to realize converged fibre-optic and wireless networks [1]. Recently, we have proposed and experimentally demonstrated a novel DSP based digital coherent receiver for phase-modulated RoF optical links [2]. The RF signal processing in [2] is performed using maximum likelihood RF carrier phase estimation [2]. In this paper, we investigate the performance of the proposed digital coherent receiver in [2] using feedforward Viterbi & Viterbi RF carrier recovery algorithm in combination with squaring synchronizer. The advantage of the proposed scheme is simplicity since the RF carrier recovery is performed on only one sample per bit due to prior squaring synchronizer which performs timing recovery. We investigate the tolerance of the proposed scheme with respect to laser linewidth using numerical simulations and compare the results to traditional approach using feedforward maximum likelihood RF carrier phase recovery (MLCPE).
Starting Page	1
Ending Page	1
File Size	1702182
Page Count	1
File Format	PDF
ISBN	9781424440795
DOI	10.1109/CLEOE-EQEC.2009.5191715
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-14
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Maximum likelihood estimation Viterbi algorithm Bit error rate Phase estimation Signal processing algorithms Optical receivers Optical fiber communication Timing Frequency synchronization
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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