Faruk, MS;
Louchet, H;
Erkılınç, MS;
Savory, SJ;
(2016)
DSP algorithms for recovering single-carrier Alamouti coded signals for PON applications.
Optics Express
, 24
(21)
pp. 24083-24091.
10.1364/OE.24.024083.
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Abstract
Alamouti space-time block code (STBC) combined with a simple heterodyne coherent receiver enables phase diverse coherent detection without any optical polarization tracking. While such a system consisting of only a 3-dB coupler and a single balanced photodiode has been recently demonstrated using orthogonal frequency-division multiplexed (OFDM) signals, herein we report the first application to single-carrier systems. Applicability of such technique for single-carrier systems is not straightforward since specialized digital signal processing (DSP) algorithms are required for data recovery. In this paper, we address the implementing issues and DSP algorithms applicable for single-carrier (SC) Alamouti STBC based simplified heterodyne receivers. Polarization-insensitive operation of the proposed scheme and its performance are verified by means of simulation for a 12-Gbits/s quadrature phase-shift keying (QPSK) transmission system.
| Type: | Article |
|---|---|
| Title: | DSP algorithms for recovering single-carrier Alamouti coded signals for PON applications |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.24.024083 |
| Publisher version: | http://doi.org/10.1364/OE.24.024083 |
| Language: | English |
| Additional information: | Copyright © 2017 The Optical Society. All rights reserved. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1532887 |
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