Investigation into optical technologies for access evolution

Chanclou, Philippe; Lanquetin, J.-P.; Durel, S.; Saliou, Fabienne; Landousies, B.; Genay, N.; Belfqih, Z.

doi:10.1364/ofc.2009.owh1

Cited by 22 publications

(8 citation statements)

References 2 publications

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“…The transmitted binary information of OOK is divided into multiple sets of 3-bit data, which are expressed as s, and are converted into z by equation (3). Using the shaping algorithm explained in Sections 3 and 4, z+c is provided to the OOK modulator.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…-2 , when signal shaping is used. The reason is that the binary information of OOK is divided into multiple sets of 3-bit data, and each set is converted into 7-bit code by Equation (3). Under this coding algorithm, a single symbol error causes a multiple bit error, which degrades the BER characteristics of the OOK signals.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…As full services are provided by PON-based access networks, operators expect improved bandwidth, flexibility in provisioning, and enhanced performance of access nodes over existing access networks. The direction of PON evolution is attracting global attention from the telecom industry [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Signal Shaping to Achieve OOK and PSK Co-Existence for Improved Optical Access Network Performance

Okumura

Kato²,

Fujii³

2014

AJNC

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This paper proposes a novel symbol mapping that uses signal shaping to alleviate the BER problem in constellation sharing with the use of phase information. This mapping solves one of the most critical problems; the small Euclid distance of the PSK symbols in the constellation sharing of OOK and PSK in Passive Optical Networks (PONs). Constellation sharing enables next generation PONs to overlay existing PONs with the use of an advanced modulation format based on the Digital Signal Processing (DSP) technology that well supports migration of the access network. The modulation format of Amplitude Shift Keying (ASK), Phase Shift Keying (PSK), and Quadrature Amplitude Modulation (QAM) can co-exist with the existing PONs, which utilize On-off Keying (OOK). The proposed mapping is designed to maximize the symbol distance assuming the co-existence of OOK and PSK. This paper shows the configuration, operation principles, and performance of the proposed signal mapping for OOK and PSK. It also shows that constellation sharing improves the BER characteristics of OOK and PSK in conjunction with an existing PON and the next generation technology.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Simulation Results and Discussionmentioning

confidence: 99%

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Signal Shaping to Achieve OOK and PSK Co-Existence for Improved Optical Access Network Performance

Okumura

Kato²,

Fujii³

2014

AJNC

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show abstract

“…Nowadays, passive optical network (PON) has been deployed worldwide to provide broadband access [1][2][3][4][5][6][7] and the time and wavelength division multiplexed PON (TWDM-PON) was selected by Full Service Access Network (FSAN) as the primary solution for NG-PON2 in 2012 [8]. From then, various TWDM-PON have been proposed to support 40-Gb/s data rate [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Asymmetrical TWDM-PON with 4 × 25-Gb/s downstream DSB OFDM and 4 × 10-Gb/s upstream OOK modulations

Lin

Zhang

2015

Optical Fiber Technology

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“…As a promising solution, passive optical network (PON) has been widely investigated and deployed because of its cost effectiveness, energy efficiency and service transparency [5][6][7][8]. However, challenge still exists to support the explosive traffic with current PON techniques.…”

Section: Introductionmentioning

confidence: 99%

Comparison of DSP schemes with frequency domain equalization for passive optical networks

Yang

Jia

Liu

et al. 2015

Optical Fiber Technology

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Investigation into optical technologies for access evolution

Cited by 22 publications

References 2 publications

Signal Shaping to Achieve OOK and PSK Co-Existence for Improved Optical Access Network Performance

Signal Shaping to Achieve OOK and PSK Co-Existence for Improved Optical Access Network Performance

Asymmetrical TWDM-PON with 4 × 25-Gb/s downstream DSB OFDM and 4 × 10-Gb/s upstream OOK modulations

Comparison of DSP schemes with frequency domain equalization for passive optical networks

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