Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems
In a previously published transmission technique known as subcarrier index-power modulated optical OFDM (SIPM-OOFDM), a new subcarrier index-power (SIP) information-bearing dimension is introduced to enable SIPM-OOFDM to carry one extra information bit per subcarrier. As a significantly improved var...
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doaj-853c0e004ddd4bc498f1c62d70aea7ba2021-03-29T17:34:39ZengIEEEIEEE Photonics Journal1943-06552016-01-018611410.1109/JPHOT.2016.26276247742356Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON SystemsFadi Halabi0Lin Chen1Roger Phillip Giddings2Ali Hamie3J. M. Tang4School of Electronic Engineering, Bangor University, Bangor, U.KSchool of Electronic Engineering, Bangor University, Bangor, U.KSchool of Electronic Engineering, Bangor University, Bangor, U.KCRITC Lab, Arts, Sciences and Technology University in Lebanon University, Beirut, LebanonSchool of Electronic Engineering, Bangor University, Bangor, U.KIn a previously published transmission technique known as subcarrier index-power modulated optical OFDM (SIPM-OOFDM), a new subcarrier index-power (SIP) information-bearing dimension is introduced to enable SIPM-OOFDM to carry one extra information bit per subcarrier. As a significantly improved variant of SIPM-OOFDM, in this paper, a novel signal transmission technique termed multilevel subcarrier index-power modulated OOFDM (ML-SIPM-OOFDM) is proposed and extensively explored for the first time. It utilizes four predefined subcarrier power levels to convey two extra information bits per subcarrier in the SIP information-bearing dimension. Extensive explorations of ML-SIPM-OOFDM transmission performance characteristics are undertaken, based on which, optimum key transceiver parameters are identified. For cost-sensitive intensity-modulation and direct-detection (IMDD) passive optical network (PON) systems, it is shown that, compared to SIPM-OOFDM, ML-SIPM-OOFDM improves the signal transmission bit rate by 30%. In addition, in comparison with conventional OOFDM, a 13% increase in ML-SIPM-OOFDM signal transmission bit rate is also feasible without degrading the minimum received optical power required for achieving a BER of 1.0 x 10<sup>-3</sup>. Moreover, further 9% and 10% ML-SIPM-OOFDM signal transmission bit rate enhancements are also achievable when use is made of adaptive bit loading and subcarrier count doubling, respectively.https://ieeexplore.ieee.org/document/7742356/Orthogonal frequency division multiplexing (OFDM)signal modulation, passive optical network (PON). |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fadi Halabi Lin Chen Roger Phillip Giddings Ali Hamie J. M. Tang |
spellingShingle |
Fadi Halabi Lin Chen Roger Phillip Giddings Ali Hamie J. M. Tang Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems IEEE Photonics Journal Orthogonal frequency division multiplexing (OFDM) signal modulation, passive optical network (PON). |
author_facet |
Fadi Halabi Lin Chen Roger Phillip Giddings Ali Hamie J. M. Tang |
author_sort |
Fadi Halabi |
title |
Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems |
title_short |
Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems |
title_full |
Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems |
title_fullStr |
Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems |
title_full_unstemmed |
Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems |
title_sort |
multilevel subcarrier index-power modulated optical ofdm with adaptive bit loading for imdd pon systems |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2016-01-01 |
description |
In a previously published transmission technique known as subcarrier index-power modulated optical OFDM (SIPM-OOFDM), a new subcarrier index-power (SIP) information-bearing dimension is introduced to enable SIPM-OOFDM to carry one extra information bit per subcarrier. As a significantly improved variant of SIPM-OOFDM, in this paper, a novel signal transmission technique termed multilevel subcarrier index-power modulated OOFDM (ML-SIPM-OOFDM) is proposed and extensively explored for the first time. It utilizes four predefined subcarrier power levels to convey two extra information bits per subcarrier in the SIP information-bearing dimension. Extensive explorations of ML-SIPM-OOFDM transmission performance characteristics are undertaken, based on which, optimum key transceiver parameters are identified. For cost-sensitive intensity-modulation and direct-detection (IMDD) passive optical network (PON) systems, it is shown that, compared to SIPM-OOFDM, ML-SIPM-OOFDM improves the signal transmission bit rate by 30%. In addition, in comparison with conventional OOFDM, a 13% increase in ML-SIPM-OOFDM signal transmission bit rate is also feasible without degrading the minimum received optical power required for achieving a BER of 1.0 x 10<sup>-3</sup>. Moreover, further 9% and 10% ML-SIPM-OOFDM signal transmission bit rate enhancements are also achievable when use is made of adaptive bit loading and subcarrier count doubling, respectively. |
topic |
Orthogonal frequency division multiplexing (OFDM) signal modulation, passive optical network (PON). |
url |
https://ieeexplore.ieee.org/document/7742356/ |
work_keys_str_mv |
AT fadihalabi multilevelsubcarrierindexpowermodulatedopticalofdmwithadaptivebitloadingforimddponsystems AT linchen multilevelsubcarrierindexpowermodulatedopticalofdmwithadaptivebitloadingforimddponsystems AT rogerphillipgiddings multilevelsubcarrierindexpowermodulatedopticalofdmwithadaptivebitloadingforimddponsystems AT alihamie multilevelsubcarrierindexpowermodulatedopticalofdmwithadaptivebitloadingforimddponsystems AT jmtang multilevelsubcarrierindexpowermodulatedopticalofdmwithadaptivebitloadingforimddponsystems |
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1724197632842137600 |