OFDM-PON performance with limited quantization

Author

Escayola, Xavier ; Cano, Ivan ; Santos, Marcos ; Prat, Josep

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya, Barcelona, Spain

fYear

2013

fDate

23-27 June 2013

Firstpage

1

Lastpage

4

Abstract

A study of digital-analogue converter quantization effects and the minimum resolution required in an OFDMA-PON is carried out with 10 Gbps transceivers. The PON is based on DD over a maximum of 100 km fibre length. Results indicate that a 6-bit resolution for both, DAC and ADC are enough for ensuring a FEC limit BER of 10^-3 for a penalty of 1dB compared with infinite quantization for downstream with 16QAM modulation. For upstream signals with QPSK modulation, a 6-bit DAC with 6-bit ADC ensures almost no penalty, while a 4-bit DAC gives a penalty of 2 dB related with infinite quantization.

Keywords

OFDM modulation; analogue-digital conversion; digital-analogue conversion; error statistics; forward error correction; frequency division multiple access; optical transceivers; passive optical networks; quantisation (signal); 16QAM modulation; 4-bit DAC; 6-bit ADC; 6-bit DAC; 6-bit resolution; ADC; BER; DAC; FEC limit; OFDM-PON performance; OFDMA-PON; QPSK modulation; analogue-to-digital converters; bit rate 10 Gbit/s; digital-analogue converter quantization effects; digital-to-analogue converters; fibre length; infinite quantization; limited quantization; orthogonal frequency division multiplexing access; passive optical networks; transceivers; upstream signals; Integrated optics; OFDM; Passive optical networks; Phase shift keying; Quantization (signal); Signal resolution; DAC/ADC; OBI; OFDM; passive optical networks; quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2013 15th International Conference on

Conference_Location

Cartagena

ISSN

2161-2056

Type

conf

DOI

10.1109/ICTON.2013.6602921

Filename

6602921