Abstract

This paper describes the demonstration of an energy efficient orthogonal frequency division multiplexing passive optical network using the dynamic signal to noise ratio (SNR) management and adaptive modulation. Controlling the calculation precision and modulation format minimizes the energy consumption of digital signal processor while satisfying the requirements of bit error ratio. We show that the calculation precision and modulation format can be optimized according to the optical received power, and realize a 58.7% effective energy efficiency per bit in an FPGA-based receiver experimentally.

© 2014 Optical Society of America

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References

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  1. K. Kitayama, Y. Yoshida, and A. Maruta, “Green, elastic coherent IFDMA-PON for next-generation access network,” in Proceedings of 14th International Conference on Transparent Optical Networks, paper Tu.B3.1 (2012).
  2. N. Cvijetic, “OFDM for Next-Generation Optical Access Networks,” J. Lightwave Technol. 30(4), 384–398 (2012).
    [Crossref]
  3. K. Kanonakis and I. Tomkos, “Energy-Efficient OFDMA-PON Exploiting Modular OLT/ONU Digital Signal Processing,” in Proceedings of OFC 2013, paper OTh3A.4 (2013).
  4. N. Iiyama, S.-Y. Kim, T. Shimada, S. Kimura, and N. Yoshimoto, “Co-existent Downstream Scheme between OOK and QAM Signals in an Optical Access Network using Software-defined Technology,” in Proceedings of OFC 2012, paper JTh2A.53 (2012).
  5. H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
    [Crossref]
  6. R. Bouziane, P. A. Milder, R. J. Koutsoyannis, Y. Benlachtar, J. C. Hoe, M. Glick, and R. I. Killey, “Dependence of Optical OFDM Transceiver ASIC Complexity on FFT Size,” in Proceedings of OFC 2012, paper JW2A.58 (2012).
  7. H. Takahashi, A. A. Amin, I. Morita, and H. Tanaka, “Required Resolution of Digital-Analog-Converter for Optical OFDM,” in Proceedings of OFC 2010, paper JThA4, (2010).
  8. ITU-T Recommendation G.975.1, Appendix I.9 (2004).
  9. H. Kimura, K. Asaka, H. Nakamura, S. Kimura, and N. Yoshimoto, “First Demonstration of Energy Efficiency of Dynamic SNR Management for Adaptive Modulation in IM-DD OFDM-PON,” in Proceedings of ECOC 2013, paper We.4.F.5 (2013).
  10. F. Vacondio, O. Bertran-Pardo, Y. Pointurier, J. Fickers, A. Ghazisaeidi, G. de Valicourt, J.-C. Antona, P. Chanclou, and S. Bigo, “Flexible TDMA access optical networks enabled by burst-mode software defined coherent transponders,” in Proceedings of ECOC 2013, paper We.1.F.2 (2013).

2012 (2)

N. Cvijetic, “OFDM for Next-Generation Optical Access Networks,” J. Lightwave Technol. 30(4), 384–398 (2012).
[Crossref]

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

Cvijetic, N.

Kimura, H.

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

Kimura, S.

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

Nakamura, H.

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

Yoshimoto, N.

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

IEEE Photon. Technol. Lett. (1)

H. Kimura, H. Nakamura, S. Kimura, and N. Yoshimoto, “Numerical Analysis of Dynamic SNR Management by Controlling DSP Calculation Precision for Energy-Efficient OFDM-PON,” IEEE Photon. Technol. Lett. 24(23), 2132–2135 (2012).
[Crossref]

J. Lightwave Technol. (1)

Other (8)

K. Kanonakis and I. Tomkos, “Energy-Efficient OFDMA-PON Exploiting Modular OLT/ONU Digital Signal Processing,” in Proceedings of OFC 2013, paper OTh3A.4 (2013).

N. Iiyama, S.-Y. Kim, T. Shimada, S. Kimura, and N. Yoshimoto, “Co-existent Downstream Scheme between OOK and QAM Signals in an Optical Access Network using Software-defined Technology,” in Proceedings of OFC 2012, paper JTh2A.53 (2012).

K. Kitayama, Y. Yoshida, and A. Maruta, “Green, elastic coherent IFDMA-PON for next-generation access network,” in Proceedings of 14th International Conference on Transparent Optical Networks, paper Tu.B3.1 (2012).

R. Bouziane, P. A. Milder, R. J. Koutsoyannis, Y. Benlachtar, J. C. Hoe, M. Glick, and R. I. Killey, “Dependence of Optical OFDM Transceiver ASIC Complexity on FFT Size,” in Proceedings of OFC 2012, paper JW2A.58 (2012).

H. Takahashi, A. A. Amin, I. Morita, and H. Tanaka, “Required Resolution of Digital-Analog-Converter for Optical OFDM,” in Proceedings of OFC 2010, paper JThA4, (2010).

ITU-T Recommendation G.975.1, Appendix I.9 (2004).

H. Kimura, K. Asaka, H. Nakamura, S. Kimura, and N. Yoshimoto, “First Demonstration of Energy Efficiency of Dynamic SNR Management for Adaptive Modulation in IM-DD OFDM-PON,” in Proceedings of ECOC 2013, paper We.4.F.5 (2013).

F. Vacondio, O. Bertran-Pardo, Y. Pointurier, J. Fickers, A. Ghazisaeidi, G. de Valicourt, J.-C. Antona, P. Chanclou, and S. Bigo, “Flexible TDMA access optical networks enabled by burst-mode software defined coherent transponders,” in Proceedings of ECOC 2013, paper We.1.F.2 (2013).

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Figures (7)

Fig. 1
Fig. 1

Dynamic SNR management for OFDM-PON.

Fig. 2
Fig. 2

Signal transmission environment in IM-DD OFDM transmitter and receiver.

Fig. 3
Fig. 3

BER characteristics against number of bits and constellation at −18dBm optical received power.

Fig. 4
Fig. 4

(a) FPGA-based transmitter. (b) FPGA-based receiver.

Fig. 5
Fig. 5

Measured power consumption of transceiver.

Fig. 6
Fig. 6

Optimized energy per bit of receiver against the transmission distance.

Fig. 7
Fig. 7

(a) Subscriber distribution. (b) Relative energy consumption using dynamic SNR management.

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