Frequency Diversity MIMO Detection for Coherent Optical Transmission

Kaneda, Noriaki; Pfau, Timo; Lee, Jeffrey

doi:10.1049/cp.2013.1537

Cited by 15 publications

(8 citation statements)

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“…Rather than use Nyquist pulse shaping at the transmitter to avoid linear crosstalk, FD-MIMO adaptively compensates the crosstalk induced by this spectral overlap at the receiver, and thus, removes the stringent requirements on the filtering or carrier frequency stability. This technique has already been demonstrated for DP-QPSK in both numerical simulation 2 and experimental back-to-back measurement 3 .…”

Section: Introductionmentioning

confidence: 89%

“…In this scenario, a tight channel spacing is required to achieve higher spectral efficiency, limited by linear crosstalk between adjacent channels. To overcome this, Nyquist pulse shaping as well as various types of multichannel equalization (MCE) [1][2][3] have been considered. The former is a widespread technique to transmit sinc-shaped pulses with a corresponding rectangular spectrum in order to minimize linear crosstalk.…”

Section: Introductionmentioning

confidence: 99%

“…The latter consists of applying a multi-channel equalizer at the receiver to compensate for crosstalk. Several MCE techniques have been proposed such as the adaptive equalizer with least mean square algorithm 1 , maximum a posteriori detection 1 , and frequency diversity multiple-input-multiple-output (FD-MIMO) detection 2,3 . FD-MIMO generalises the Constant Modulus Algorithm (CMA) polarization diversity MIMO used to demultiplex polarization multiplexed signals by also demultiplexing different carrier frequencies.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Sato

Maher

Lavery

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Sato

Maher

Lavery

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

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“…[17]) are not suitable for our purposes, since they typically involve complex processing, beside the one we propose, and rely on synchronization requirements that severely limit their feasibility. Alternatively, there exist many examples of simple multiple-input multiple-output (MIMO) processing, see [18], [19], but if actual multiuser detection is not envisaged, as in these cases, the performance penalty is excessive. Indeed, these works do not target fully overlapped signals.…”

Section: Introductionmentioning

confidence: 99%

Signal Overlap for Elastic Optical Networks

Foggi¹,

Cugini²

2016

J. Lightwave Technol.

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In Elastic Optical Networks (EONs), advanced transmission techniques based on coherent detection strategies have been proposed and exploited to provide high flexibility in resource allocation. So far, these techniques have assumed the constraint of each optical signal being transmitted along a dedicated frequency slot, by carefully avoiding frequency overlap with other optical signals.In this study, an overlap technique, that enables uncorrelated optical signals to be superimposed along the same spectrum resources, is designed and validated through simulations, both in terms of performance bounds and bit-error rate (BER) in coded transmissions. In particular, it is demonstrated how this technique allows each overlapped signal to be correctly received and detected. The proposed technique is less spectrally efficient and more complex to implement than increasing the constellation size and using non overlapping frequency slots, but it warrants consideration for flexible networking.The proposed technique is first theoretically detailed and justified. Then, networking scenarios and implementation schemes suitable for its effective utilization are identified and applied in the case of two overlapped 112 Gb/s polarization-multiplexed quadrature phase shift keying (PM-QPSK) signals. Simulation results show that, applying 3-dB optical signal-to-noise ratio margin on the achieved bounds, optical reaches of around 800 km can be successfully supported by the proposed overlap technique.

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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%