Presentation 2010-07-29
Evaluation of Required Bit Resolution for Digital-Analog-Converter in Optical OFDM Signal Generation
Hidenori TAKAHASHI, Itsuro MORITA, Hideaki TANAKA,
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Abstract(in English) The required bit resolution of digital-analog-converter(DAC)for optical OFDM was evaluated through simulation and experiment. We found that the signal degradation caused by quantization depends on the number of subcarriers theoretically, but the other noise generated in experiment suppresses the dependency. Additionally, signal degradation caused by quantization is independent of subcarrier modulation, and the performance improvement saturates with increasing bit resolution. With the criteria for the BER of 1x10^<-3>, the required DAC resolution by simulation with ideal analog-digital-converter at receiver is 3 bits for QPSK, 4 bits for 8-QAM and 5 bits for 16-QAM and 32-QAM.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical OFDM / Digital-Analog-Converter / Resolution
Paper # OCS2010-27
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Committee OCS
Conference Date 2010/7/22(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of Required Bit Resolution for Digital-Analog-Converter in Optical OFDM Signal Generation
Sub Title (in English)
Keyword(1) Optical OFDM
Keyword(2) Digital-Analog-Converter
Keyword(3) Resolution
1st Author's Name Hidenori TAKAHASHI
1st Author's Affiliation KDDI R&D Laboratories Inc.()
2nd Author's Name Itsuro MORITA
2nd Author's Affiliation KDDI R&D Laboratories Inc.
3rd Author's Name Hideaki TANAKA
3rd Author's Affiliation KDDI R&D Laboratories Inc.
Date 2010-07-29
Paper # OCS2010-27
Volume (vol) vol.110
Number (no) 152
Page pp.pp.-
#Pages 5
Date of Issue