Spectral Efficiency of Coded Phase-Shift Keying for Fiber-Optic Communication

Gerhard Kramer; Alexei Ashikhmin; Adriaan J. Van Wijngaarden; Xing Wei

doi:10.1109/JLT.2003.817704

Spectral Efficiency of Coded Phase-Shift Keying for Fiber-Optic Communication

Gerhard Kramer, Alexei Ashikhmin, Adriaan J. Van Wijngaarden, Xing Wei

Alcatel-Lucent

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

50 Scopus citations

Abstract

Several optical modulation and detection schemes are compared by computing their spectral efficiencies over additive white Gaussian noise channels. The bandwidth savings of differential quadrature phase-shift keying (D-QPSK) over both direct-detection on-off keying and differential binary phase-shift keying suggest that D-QPSK can improve the reach and efficiency of wavelength-division multiplexing systems. To test the theory, Reed-Solomon and low-density parity-check forward error correction codes are designed and evaluated. The codes generally behave as expected, except that for D-QPSK the gains are hampered by the differential detector. It is further shown that neither multiple-symbol differential detection nor decision-feedback detection is attractive when using strong codes.

Original language	English
Pages (from-to)	2438-2445
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	21
Issue number	10
DOIs	https://doi.org/10.1109/JLT.2003.817704
State	Published - Oct 2003
Externally published	Yes

Keywords

Error correcting coding
Optical signal detection
Optical transmitters
Phase-shift keying

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10.1109/JLT.2003.817704

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title = "Spectral Efficiency of Coded Phase-Shift Keying for Fiber-Optic Communication",

abstract = "Several optical modulation and detection schemes are compared by computing their spectral efficiencies over additive white Gaussian noise channels. The bandwidth savings of differential quadrature phase-shift keying (D-QPSK) over both direct-detection on-off keying and differential binary phase-shift keying suggest that D-QPSK can improve the reach and efficiency of wavelength-division multiplexing systems. To test the theory, Reed-Solomon and low-density parity-check forward error correction codes are designed and evaluated. The codes generally behave as expected, except that for D-QPSK the gains are hampered by the differential detector. It is further shown that neither multiple-symbol differential detection nor decision-feedback detection is attractive when using strong codes.",

keywords = "Error correcting coding, Optical signal detection, Optical transmitters, Phase-shift keying",

author = "Gerhard Kramer and Alexei Ashikhmin and {Van Wijngaarden}, {Adriaan J.} and Xing Wei",

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T1 - Spectral Efficiency of Coded Phase-Shift Keying for Fiber-Optic Communication

AU - Kramer, Gerhard

AU - Ashikhmin, Alexei

AU - Van Wijngaarden, Adriaan J.

AU - Wei, Xing

PY - 2003/10

Y1 - 2003/10

N2 - Several optical modulation and detection schemes are compared by computing their spectral efficiencies over additive white Gaussian noise channels. The bandwidth savings of differential quadrature phase-shift keying (D-QPSK) over both direct-detection on-off keying and differential binary phase-shift keying suggest that D-QPSK can improve the reach and efficiency of wavelength-division multiplexing systems. To test the theory, Reed-Solomon and low-density parity-check forward error correction codes are designed and evaluated. The codes generally behave as expected, except that for D-QPSK the gains are hampered by the differential detector. It is further shown that neither multiple-symbol differential detection nor decision-feedback detection is attractive when using strong codes.

AB - Several optical modulation and detection schemes are compared by computing their spectral efficiencies over additive white Gaussian noise channels. The bandwidth savings of differential quadrature phase-shift keying (D-QPSK) over both direct-detection on-off keying and differential binary phase-shift keying suggest that D-QPSK can improve the reach and efficiency of wavelength-division multiplexing systems. To test the theory, Reed-Solomon and low-density parity-check forward error correction codes are designed and evaluated. The codes generally behave as expected, except that for D-QPSK the gains are hampered by the differential detector. It is further shown that neither multiple-symbol differential detection nor decision-feedback detection is attractive when using strong codes.

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Spectral Efficiency of Coded Phase-Shift Keying for Fiber-Optic Communication

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