Low-complexity carrier phase recovery for square M-QAM based on S-BPS algorithm

Xian Zhou; Chao Lu; Pak Tao Lau; Keping Long

doi:10.1109/LPT.2014.2332358

Low-complexity carrier phase recovery for square M-QAM based on S-BPS algorithm

Xian Zhou, Chao Lu, Pak Tao Lau, Keping Long

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

Abstract

Minimum distance blind phase search (BPS) algorithm has good tolerance to laser linewidth but with high computational complexity. In this letter, a novel substitution algorithm, i.e., symmetry BPS (S-BPS) is proposed for arbitrary square M-ary quadrature amplitude modulation (M-QAM) coherent optical systems. Based on the symmetry of square M-QAM, it can reduce the complexity directly by simplifying the phase error detection in the real plane and without multiplication. Taking square 4-QAM, 16-QAM, and 64-QAM as examples, the effectiveness of the proposed S-BPS algorithm is demonstrated by numerical simulations.

Original language	English
Article number	6846279
Pages (from-to)	1863-1866
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	18
DOIs	https://doi.org/10.1109/LPT.2014.2332358
Publication status	Published - 15 Sept 2014

Keywords

Carrier phase recovery
Coherent optical system
Quadrature amplitude modulation (QAM)

ASJC Scopus subject areas

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

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10.1109/LPT.2014.2332358

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title = "Low-complexity carrier phase recovery for square M-QAM based on S-BPS algorithm",

abstract = "Minimum distance blind phase search (BPS) algorithm has good tolerance to laser linewidth but with high computational complexity. In this letter, a novel substitution algorithm, i.e., symmetry BPS (S-BPS) is proposed for arbitrary square M-ary quadrature amplitude modulation (M-QAM) coherent optical systems. Based on the symmetry of square M-QAM, it can reduce the complexity directly by simplifying the phase error detection in the real plane and without multiplication. Taking square 4-QAM, 16-QAM, and 64-QAM as examples, the effectiveness of the proposed S-BPS algorithm is demonstrated by numerical simulations.",

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AU - Zhou, Xian

AU - Lu, Chao

AU - Lau, Pak Tao

AU - Long, Keping

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Y1 - 2014/9/15

N2 - Minimum distance blind phase search (BPS) algorithm has good tolerance to laser linewidth but with high computational complexity. In this letter, a novel substitution algorithm, i.e., symmetry BPS (S-BPS) is proposed for arbitrary square M-ary quadrature amplitude modulation (M-QAM) coherent optical systems. Based on the symmetry of square M-QAM, it can reduce the complexity directly by simplifying the phase error detection in the real plane and without multiplication. Taking square 4-QAM, 16-QAM, and 64-QAM as examples, the effectiveness of the proposed S-BPS algorithm is demonstrated by numerical simulations.

AB - Minimum distance blind phase search (BPS) algorithm has good tolerance to laser linewidth but with high computational complexity. In this letter, a novel substitution algorithm, i.e., symmetry BPS (S-BPS) is proposed for arbitrary square M-ary quadrature amplitude modulation (M-QAM) coherent optical systems. Based on the symmetry of square M-QAM, it can reduce the complexity directly by simplifying the phase error detection in the real plane and without multiplication. Taking square 4-QAM, 16-QAM, and 64-QAM as examples, the effectiveness of the proposed S-BPS algorithm is demonstrated by numerical simulations.

KW - Carrier phase recovery

KW - Coherent optical system

KW - Quadrature amplitude modulation (QAM)

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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ER -

Low-complexity carrier phase recovery for square M-QAM based on S-BPS algorithm

Abstract

Keywords

ASJC Scopus subject areas

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