Close-form expression of one-tap normalized LMS carrier phase recovery in optical communication systems

  title={Close-form expression of one-tap normalized LMS carrier phase recovery in optical communication systems},
  author={Tianhua Xu and Gunnar Jacobsen and Sergei Popov and Jie Li and Tiegen Liu and Yimo Zhang},
  booktitle={Other Conferences},
The performance of long-haul high speed coherent optical fiber communication systems is significantly degraded by the laser phase noise and the equalization enhanced phase noise (EEPN). In this paper, the analysis of the one-tap normalized least-mean-square (LMS) carrier phase recovery (CPR) is carried out and the close-form expression is investigated for quadrature phase shift keying (QPSK) coherent optical fiber communication systems, in compensating both laser phase noise and equalization… 

Digital Adaptive Carrier Phase Estimation in Multi-level Phase Shift Keying Coherent Optical Communication Systems

The results show that the one-tap normalized LMS algorithm performs pretty well in the carrier phase estimation, but will be less effective with the increment of modulation levels, in the compensation of both intrinsic laser phase noise and equalization enhanced phase noise.

Carrier phase estimation in dispersion-unmanaged optical transmission systems

  • Tianhua XuP. Bayvel S. Popov
  • Physics
    2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)
  • 2017
The study on carrier phase estimation (CPE) approaches, involving a one-tap normalized least-mean-square (NLMS) algorithm, a block-wise average algorithm, and a Viterbi-Viterbi algorithm has been

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It can be found that the variable-step-size LMS equalizer can achieve the adaptive CD equalization with a lower complexity, compared to the traditional LMS algorithm.

Digital Signal Processing for Optical Communications and Networks I: Linear Compensation

This chapter will focus on the introduction and investigation of digital signal processing employed for channel impairments compensation based on the coherent detection of optical signals, to provide a roadmap for the design and implementation of realtime optical fiber communication systems.

Digital signal processing for optical communications and networks

The achievable information rates of optical communication networks have been widely increased over the past four decades with the introduction and development of optical amplifiers, coherent

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We study the phase characteristics of weak turbulence and analyze the estimation and compensation of phase noise caused by atmospheric turbulence. It is found that the traditional compensation

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Comprehensive study of CD compensation and carrier phase estimation in optical communication systems influenced by equalization enhanced phase noise

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A novel investigation on the enhancement of phase noise in coherent optical transmission system due to electronic chromatic dispersion compensation is presented and the performance of differential QPSK demodulation system is compared.

Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation

This paper describes a coherent optical receiver for demodulating optical quadrature phase-shift keying (QPSK) signals. At the receiver, a phase-diversity homodyne detection scheme is employed

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Results suggest that there is a free choice between CO-OFDM and a high capacity nPSK implementation at least as long as the phase noise influence is concerned, and an important and novel observation is that the two types of systems have very closely the same BER as a function of transmission distance for the same capacity.

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One of the most severe impairments that affect coherent optical systems employing high-order modulation formats is phase noise due to transmit and receive lasers. This is especially detrimental in

Receiver implemented RF pilot tone phase noise mitigation in coherent optical nPSK and nQAM systems.

It is found that equalization enhanced phase noise--which appears as correlated pure phase noise, amplitude noise and time jitter-cannot be efficiently mitigated by the use of an (optically or electrically generated) RF pilot tone.

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Impact of phase to amplitude noise conversion in coherent optical systems with digital dispersion compensation.

The simulation results demonstrate that the performance of coherent systems can significantly be degraded with digitally compensated CD and LO phase noise.