Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems | PERPUSTAKAAN UNIVERSITAS KATOLIK PARAHYANGAN

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Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems

Chen, Bin - Nama Orang; Alvarado, Alex - Nama Orang; Liga, Gabriele - Nama Orang; Xue, Xuwei - Nama Orang; Lei, Yi - Nama Orang; Liang, Zhiwei - Nama Orang; Ling, Wei - Nama Orang;

Shaping modulation formats in multi-dimensional (MD) space is an effective approach to harvest spectral efficiency gains in both the additive white Gaussian noise (AWGN) channel and the optical fiber channel. In the first part of this paper, existing MD geometrically-shaped modulations for fiber optical communications are reviewed. It is shown that large gains can be obtained by exploiting correlation in the dimensions or/and by increasing the cardinality of the modulation format. Practical limitations and challenges are also discussed together with efficient solutions. In the second part, we extend the recently proposed four-dimensional (4D) modulation format family based on the constraint of orthant-symmetry to high spectrum efficiencies up to 10 b/4D-sym by maximizing generalized mutual information for AWGN channel. Reach increases of up to 25% for a multi-span optical fiber transmission system are reported. Lastly, with the help of a recently introduced nonlinear interference (NLI) model, an optimization for designing nonlinear-tolerant 4D modulation formats is introduced for a single-span optical fiber system. Simulation results show that the proposed NLI model-based 4D modulation format could increase the effective SNRs by 0.25 dB with respect to the AWGN channel-optimal 4D modulation format.

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Barcode		Tipe Koleksi	Nomor Panggil	Lokasi	Status
art145847	null	Artikel		Gdg9-Lt3	Tersedia namun tidak untuk dipinjamkan - No Loan

Informasi Detail

Judul Seri: JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.41 No.3 February 1 2023
No. Panggil: -
Penerbit: : .,
Deskripsi Fisik: p. 897-910
Bahasa: English
ISBN/ISSN: -
Klasifikasi: NONE
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: OPTICAL FIBER COMMUNICATION
NONLINEARITIES
GENERALIZED MUTUAL INFORMATION
ACHIEVABLE INFORMATION RATES
GEOMETRIC SHAPING
MULTIDIMENSIONAL MODULATION FORMAT
Info Detail Spesifik: DOI: 10.1109/JLT.2022.3204101
Pernyataan Tanggungjawab: Bin Chen, Yi Lei, Gabriele Liga, Zhiwei Liang, Wei Ling, Xuwei Xue, Alex Alvarado

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