Investigation and comparison of digital backward propagation schemes for OFDM and single-carrier fiber-optic transmission systems

Dong Yang; Shiva Kumar; M. Nakazawa

doi:10.1016/j.yofte.2010.11.001

Investigation and comparison of digital backward propagation schemes for OFDM and single-carrier fiber-optic transmission systems

Dong Yang, Shiva Kumar, M. Nakazawa

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The performance of orthogonal frequency-division multiplexing (OFDM) and single-carrier (SC) fiber-optic transmission systems with digital backward propagation (DBP) are compared. Sixteen quadrature amplitude modulation (QAM) is used for both systems with the bit rate of 100 Gb/s. The results show that OFDM and SC with Nyquist pulses (SC-Nyquist) have a superior performance as compared to SC with raised-cosine pulses (SC-NRZ) when the DBP is used. We also studied the impact of electrical filter bandwidth and nonlinear phase/amplitude noise on the performance. As the filter bandwidth increases, the performance improves for the case of ideal BP for both OFDM and SC systems when the signal-to-noise ratio (SNR) is large. The analysis of nonlinear phase/amplitude noise revealed that it causes significant impairments for SC-NRZ systems and less impact on OFDM and SC-Nyquist systems, which explains the performance advantage of OFDM/SC-Nyquist over SC-NRZ when the DBP is used.

Original language	English
Pages (from-to)	84-90
Number of pages	7
Journal	Optical Fiber Technology
Volume	17
Issue number	1
DOIs	https://doi.org/10.1016/j.yofte.2010.11.001
Publication status	Published - 2011 Jan

Keywords

Digital backward propagation
Fiber-optic transmission
OFDM
Single-carrier

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Control and Systems Engineering
Atomic and Molecular Physics, and Optics
Instrumentation
Electrical and Electronic Engineering

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10.1016/j.yofte.2010.11.001

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title = "Investigation and comparison of digital backward propagation schemes for OFDM and single-carrier fiber-optic transmission systems",

abstract = "The performance of orthogonal frequency-division multiplexing (OFDM) and single-carrier (SC) fiber-optic transmission systems with digital backward propagation (DBP) are compared. Sixteen quadrature amplitude modulation (QAM) is used for both systems with the bit rate of 100 Gb/s. The results show that OFDM and SC with Nyquist pulses (SC-Nyquist) have a superior performance as compared to SC with raised-cosine pulses (SC-NRZ) when the DBP is used. We also studied the impact of electrical filter bandwidth and nonlinear phase/amplitude noise on the performance. As the filter bandwidth increases, the performance improves for the case of ideal BP for both OFDM and SC systems when the signal-to-noise ratio (SNR) is large. The analysis of nonlinear phase/amplitude noise revealed that it causes significant impairments for SC-NRZ systems and less impact on OFDM and SC-Nyquist systems, which explains the performance advantage of OFDM/SC-Nyquist over SC-NRZ when the DBP is used.",

keywords = "Digital backward propagation, Fiber-optic transmission, OFDM, Single-carrier",

author = "Dong Yang and Shiva Kumar and M. Nakazawa",

note = "Funding Information: S. Kumar acknowledges the support of JSPS/NSERC invitation program offered by the Ministry of Japan for this work.",

year = "2011",

month = jan,

doi = "10.1016/j.yofte.2010.11.001",

language = "English",

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pages = "84--90",

journal = "Optical Fiber Technology",

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AU - Yang, Dong

AU - Kumar, Shiva

AU - Nakazawa, M.

N1 - Funding Information: S. Kumar acknowledges the support of JSPS/NSERC invitation program offered by the Ministry of Japan for this work.

PY - 2011/1

Y1 - 2011/1

N2 - The performance of orthogonal frequency-division multiplexing (OFDM) and single-carrier (SC) fiber-optic transmission systems with digital backward propagation (DBP) are compared. Sixteen quadrature amplitude modulation (QAM) is used for both systems with the bit rate of 100 Gb/s. The results show that OFDM and SC with Nyquist pulses (SC-Nyquist) have a superior performance as compared to SC with raised-cosine pulses (SC-NRZ) when the DBP is used. We also studied the impact of electrical filter bandwidth and nonlinear phase/amplitude noise on the performance. As the filter bandwidth increases, the performance improves for the case of ideal BP for both OFDM and SC systems when the signal-to-noise ratio (SNR) is large. The analysis of nonlinear phase/amplitude noise revealed that it causes significant impairments for SC-NRZ systems and less impact on OFDM and SC-Nyquist systems, which explains the performance advantage of OFDM/SC-Nyquist over SC-NRZ when the DBP is used.

AB - The performance of orthogonal frequency-division multiplexing (OFDM) and single-carrier (SC) fiber-optic transmission systems with digital backward propagation (DBP) are compared. Sixteen quadrature amplitude modulation (QAM) is used for both systems with the bit rate of 100 Gb/s. The results show that OFDM and SC with Nyquist pulses (SC-Nyquist) have a superior performance as compared to SC with raised-cosine pulses (SC-NRZ) when the DBP is used. We also studied the impact of electrical filter bandwidth and nonlinear phase/amplitude noise on the performance. As the filter bandwidth increases, the performance improves for the case of ideal BP for both OFDM and SC systems when the signal-to-noise ratio (SNR) is large. The analysis of nonlinear phase/amplitude noise revealed that it causes significant impairments for SC-NRZ systems and less impact on OFDM and SC-Nyquist systems, which explains the performance advantage of OFDM/SC-Nyquist over SC-NRZ when the DBP is used.

KW - Digital backward propagation

KW - Fiber-optic transmission

KW - OFDM

KW - Single-carrier

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Investigation and comparison of digital backward propagation schemes for OFDM and single-carrier fiber-optic transmission systems

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Keywords

ASJC Scopus subject areas

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