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 | |
| Publication status | Published - Dec 7 2012 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Cite this
Numerical analysis of dynamic SNR Management by controlling DSP calculation precision for energy-efficient OFDM-PON. / Kimura, Hideaki; Nakamura, Hirotaka; Kimura, Shunji; Yoshimoto, Naoto.
In: IEEE Photonics Technology Letters, Vol. 24, No. 23, 6323010, 07.12.2012, p. 2132-2135.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical analysis of dynamic SNR Management by controlling DSP calculation precision for energy-efficient OFDM-PON
AU - Kimura, Hideaki
AU - Nakamura, Hirotaka
AU - Kimura, Shunji
AU - Yoshimoto, Naoto
PY - 2012/12/7
Y1 - 2012/12/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84870425454&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870425454&partnerID=8YFLogxK
U2 - 10.1109/LPT.2012.2222878
DO - 10.1109/LPT.2012.2222878
M3 - Article
AN - SCOPUS:84870425454
VL - 24
SP - 2132
EP - 2135
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 23
M1 - 6323010
ER -