Frequency diversity MIMO detection for dual-carrier DP-16QAM transmission

Sato, Masaki; Maher, Robert; Lavery, Domaniç; Shi, Kai; Thomsen, Benn C.; Bayvel, Polina

doi:10.1109/ecoc.2014.6964113

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…As the name implies, FTN signal can achieve a symbol rate faster than Nyquist rate. Therefore, it has been widely investigated in high-capacity wireless and optical communications [7][8][9][10][11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Capacity limit for faster-than-Nyquist non-orthogonal frequency-division multiplexing signaling

Zhou

Qiao

Yang

et al. 2017

Sci Rep

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Faster-than-Nyquist (FTN) signal achieves higher spectral efficiency and capacity compared to Nyquist signal due to its smaller pulse interval or narrower subcarrier spacing. Shannon limit typically defines the upper-limit capacity of Nyquist signal. To the best of our knowledge, the mathematical expression for the capacity limit of FTN non-orthogonal frequency-division multiplexing (NOFDM) signal is first demonstrated in this paper. The mathematical expression shows that FTN NOFDM signal has the potential to achieve a higher capacity limit compared to Nyquist signal. In this paper, we demonstrate the principle of FTN NOFDM by taking fractional cosine transform-based NOFDM (FrCT-NOFDM) for instance. FrCT-NOFDM is first proposed and implemented by both simulation and experiment. When the bandwidth compression factor α is set to 0.8 in FrCT-NOFDM, the subcarrier spacing is equal to 40% of the symbol rate per subcarrier, thus the transmission rate is about 25% faster than Nyquist rate. FTN NOFDM with higher capacity would be promising in the future communication systems, especially in the bandwidth-limited applications.

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Section: Introductionmentioning

confidence: 99%

Capacity limit for faster-than-Nyquist non-orthogonal frequency-division multiplexing signaling

Zhou

Qiao

Yang

et al. 2017

Sci Rep

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“…On the other hand, multi-carrier signal transmission has attracted much attention3031. Most recently, systems with sub-carrier spacing less than the baud-rate have been reported achieving super high density and effectively compensating XT among the neighboring sub-carriers using MIMO3233.…”

Section: State Of the Artmentioning

confidence: 99%

Advanced and flexible multi-carrier receiver architecture for high-count multi-core fiber based space division multiplexed applications

Asif

2016

Sci Rep

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Space division multiplexing (SDM), incorporating multi-core fibers (MCFs), has been demonstrated for effectively maximizing the data capacity in an impending capacity crunch. To achieve high spectral-density through multi-carrier encoding while simultaneously maintaining transmission reach, benefits from inter-core crosstalk (XT) and non-linear compensation must be utilized. In this report, we propose a proof-of-concept unified receiver architecture that jointly compensates optical Kerr effects, intra- and inter-core XT in MCFs. The architecture is analysed in multi-channel 512 Gbit/s dual-carrier DP-16QAM system over 800 km 19-core MCF to validate the digital compensation of inter-core XT. Through this architecture: (a) we efficiently compensates the inter-core XT improving Q-factor by 4.82 dB and (b) achieve a momentous gain in transmission reach, increasing the maximum achievable distance from 480 km to 1208 km, via analytical analysis. Simulation results confirm that inter-core XT distortions are more relentless for cores fabricated around the central axis of cladding. Predominantly, XT induced Q-penalty can be suppressed to be less than 1 dB up-to −11.56 dB of inter-core XT over 800 km MCF, offering flexibility to fabricate dense core structures with same cladding diameter. Moreover, this report outlines the relationship between core pitch and forward-error correction (FEC).

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“…On the other hand, from the viewpoint of capacity extension, multi-carrier signal transmission comprising signals with different carrier wavelengths has attracted much attention. Transmission systems in which the sub-carrier spacing is less than the baud rate have been reported, and these systems in particular achieve super-high-density transmission to compensate for neighbouring crosstalk between sub-carriers using frequency diversity multiple-input multiple-output (FD-MIMO) based on a heterodyne detection scheme [4][5] . In this scheme, a single coherent receiver detects a multi-carrier signal.…”

Section: Introductionmentioning

confidence: 99%

Compatibility between nonlinear compensation and crosstalk compensation using MIMO processing in super-high-density multi-carrier transmission system

Yamamoto

Saito

Naka

et al. 2015

2015 European Conference on Optical Communication (ECOC)

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Frequency diversity MIMO detection for dual-carrier DP-16QAM transmission

Cited by 7 publications

References 6 publications

Capacity limit for faster-than-Nyquist non-orthogonal frequency-division multiplexing signaling

Capacity limit for faster-than-Nyquist non-orthogonal frequency-division multiplexing signaling

Advanced and flexible multi-carrier receiver architecture for high-count multi-core fiber based space division multiplexed applications

Compatibility between nonlinear compensation and crosstalk compensation using MIMO processing in super-high-density multi-carrier transmission system

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