Time-Division Hybrid Modulation Formats: Tx Operation Strategies and Countermeasures to Nonlinear Propagation

Curri, Vittorio; Carena, Andrea; Poggiolini, Pierluigi; Cigliutti, Roberto; Forghieri, F.; Fludger, C.R.S.; Kupfer, Theo

doi:10.1364/ofc.2014.tu3a.2

Cited by 32 publications

(36 citation statements)

References 8 publications

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“…Zhuge et al [6][14] [15] successfully demonstrated the TDHM transmission in the environments of both fixed grids and future flex-grids by employing high-speed digital to analogue converters (DACs) at transmitters and low-complexity digital signal processors (DSPs) at receivers. Curri et al [16] investigated the transmitter operation strategies for the TDHM technique and showed pre-distortion and polarization interleaving can help alleviate the penalty induced by nonlinear propagation.…”

Section: A Literature Reviewmentioning

confidence: 99%

“…Constraint (15) ensures that there is maximally only one working lightpath channel occupying a wavelength in any fiber link. Constraint (16) ensures the condition of spare capacity sharing among protection lightpath channels. Constraint (17) ensures that each wavelength in any fiber link can only be used by either a working lightpath channel or a protection lightpath channel.…”

Section: Variablesmentioning

confidence: 99%

“…The recent emerging TDHM technique is promising to remedy the above disadvantage suffered by the discrete modulation scheme [5][6] [8][9][10][11][12][13][14][15][16]. By properly designing a TDM frame and allocating the time slot occupancy ratios of different modulation formats in the frame, the TDHM technique can achieve a continuous adaptation between spectral efficiency and transparent reach of an optical channel, which can assign the most spectrally efficient TDHM frame to match the physical layer transmission condition of an optical channel and therefore achieve the most efficient spectrum utilization.…”

Section: Introductionmentioning

confidence: 99%

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Explore Maximal Potential Capacity of WDM Optical Networks Using Time Domain Hybrid Modulation Technique

Dai

Shen

2015

J. Lightwave Technol.

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Abstract-The recent emerging time domain hybrid modulation (TDHM) technique is considered promising because it can realize continuous adaptation between spectral efficiency and transparent reach through appropriately allocating the time slot occupancy ratios of different modulation formats in a time-division multiplexing (TDM) frame. This technique is expected to achieve more efficient spectrum utilization or higher transmission capacity than the traditional transmission technique based on discrete modulation formats. For the point-to-point transmission system, the benefit of the TDHM technique has been experimentally verified. However, its benefit from the whole network perspective has not been explored yet. In this paper, we apply the TDHM technique to the optical network to maximize its transmission capacity. To evaluate the benefit of this technique, we consider the routing and wavelength assignment (RWA) problem for the TDHM-based WDM network, for which we develop an Integer Linear Programming (ILP) model and a waveplane-based heuristic algorithm to maximize the total network transmission capacity for the cases with and without network protection. For the protection case, the shared backup path protection (SBPP) technique is employed owing to its efficiency of spare capacity sharing and simplicity in network operation. The simulation study shows that compared to the design with discrete modulation formats, the TDHM-based approach can significantly increase the network transmission capacity. Index Terms-Time domain hybrid modulation (TDHM), rate adaptive optical network, waveplane-based heuristic algorithm, network capacityPart of the work was presented in ACP 2014 [32] and OFC 2015 [33].

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Section: A Literature Reviewmentioning

confidence: 99%

Section: Variablesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Explore Maximal Potential Capacity of WDM Optical Networks Using Time Domain Hybrid Modulation Technique

Dai

Shen

2015

J. Lightwave Technol.

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“…Regular PDM 2 m -ary QAM modulation formats like BPSK, QPSK, 8QAM and 16QAM (with m = 1, 2, 3, 4 bits/symbol, respectively) allow only certain data-rates for a specific FEC code rate. A possible candidate to provide finer granularity in SE is TDHQ [4,[10][11][12][13]. It is based on the assignment of two or more regular 2 m -ary QAMs with different SEs in alternating symbol times.…”

Section: A Time-domain Hybrid Qammentioning

confidence: 99%

Multi-Dimensional Coded Modulation in Long-Haul Fiber Optic Transmission

Zhang

Batshon

Davidson

et al. 2015

J. Lightwave Technol.

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Multi-dimensional coded modulation approaches the nonlinear Shannon limit due to its high SNR sensitivity and large Euclidean distance between multi-dimensional symbols. It also eliminates phase ambiguity to avoid cycle slips. In this paper, we review the design principles of bit-interleaved coded modulation with multi-dimensional mapping and its performance in long-haul transmission experiments with different spectral efficiencies in both dispersion managed and dispersion unmanaged fiber optic systems.Index Terms-coded modulation, coherent communications, coherent detection, fiber optics communications, maximum a posteriori probability (MAP) detection, optical communications, quadrature amplitude modulation (QAM), wavelength-division multiplexing (WDM) 0733-8724 (c)

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“…To enhance SE, two evolutions were recently proposed: on the one hand the more revolutionary flexible grid architecture [1], on the other hand the more straightforward time domain hybrid modulation formats (TDHMF) approach [2].…”

Section: Introductionmentioning

confidence: 99%

A transmission layer aware network design for fixed and flexible grid optical networks

Ahmad

Bianco

Chouman

et al. 2015

2015 17th International Conference on Transparent Optical Networks (ICTON)

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We focus on the design of the logical layer on an optical infrastructure for three different architectures: fixed grid WDM with fixed-rate multilevel modulation, fixed-grid WDM with time-domain hybrid modulation formats and flexible grid. A fairly detailed physical layer modelling is considered in the network design algorithms. We perform a sensitivity analysis of network and physical layer parameters, such as the link length, the traffic load and the Q margin, to understand how each parameter influences the network design. Besides comparing the two paradigms of flexible and fixed grid networks, including both pure and hybrid modulation formats, in terms of their spectral efficiency and power consumption, we show the importance of integrating a detailed physical layer modelling in the network design phase.

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Time-Division Hybrid Modulation Formats: Tx Operation Strategies and Countermeasures to Nonlinear Propagation

Abstract: We propose four strategies for TDHMF Tx operation. BER minimization permits PM-QPSK/PM-16QAM performance similar to PM-8QAM's. In TDHMF nonlinear propagation, predistortion and/or polarization interleaving enables the maximum reach predicted by GN-model.

Cited by 32 publications

References 8 publications

Explore Maximal Potential Capacity of WDM Optical Networks Using Time Domain Hybrid Modulation Technique

Explore Maximal Potential Capacity of WDM Optical Networks Using Time Domain Hybrid Modulation Technique

Multi-Dimensional Coded Modulation in Long-Haul Fiber Optic Transmission

A transmission layer aware network design for fixed and flexible grid optical networks

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