Numerical analysis of dynamic SNR Management by controlling DSP calculation precision for energy-efficient OFDM-PON

Hideaki Kimura; Hirotaka Nakamura; Shunji Kimura; Naoto Yoshimoto

doi:10.1109/LPT.2012.2222878

Numerical analysis of dynamic SNR Management by controlling DSP calculation precision for energy-efficient OFDM-PON

Hideaki Kimura, Hirotaka Nakamura, Shunji Kimura, Naoto Yoshimoto

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We propose a novel energy-saving technique using a variable precision digital signal processor for an orthogonal frequency division multiplexing (OFDM)-passive optical network. Our technique minimizes energy consumption while satisfying the bit error rate requirements by controlling the calculation precision of fast Fourier transform (FFT) and inverse FFT when generating an OFDM signal. We clarify the feasibility of our proposed technique numerically for QPSK and 16 quadratic-amplitude modulation signals. The simulation results indicate that calculation precision can be reduced according to the transmission distance.

Original language	English
Article number	6323010
Pages (from-to)	2132-2135
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	23
DOIs	https://doi.org/10.1109/LPT.2012.2222878
Publication status	Published - Dec 7 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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abstract = "We propose a novel energy-saving technique using a variable precision digital signal processor for an orthogonal frequency division multiplexing (OFDM)-passive optical network. Our technique minimizes energy consumption while satisfying the bit error rate requirements by controlling the calculation precision of fast Fourier transform (FFT) and inverse FFT when generating an OFDM signal. We clarify the feasibility of our proposed technique numerically for QPSK and 16 quadratic-amplitude modulation signals. The simulation results indicate that calculation precision can be reduced according to the transmission distance.",

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AU - Yoshimoto, Naoto

PY - 2012/12/7

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