Receive Diversity-Based SNR Improvement in OPDM-OFDMA-PON Single-Wavelength Multiple Access

Sun Young Jung, Chang Hun Kim, Hyoung Joon Park, Inho Ha, Sang Kook Han

Research output: Contribution to journalArticle

Abstract

In order to accommodate the demands for the next-generation passive optical network (PON), it is necessary to maximize the transmission capacity and the multiple accesses (MAs) within a single wavelength. However, there is a serious problem that the optical beat interference (OBI) occurs in uplink MA. With optical pulse-division multiplexing (OPDM), the OBI can be reduced simply and effectively; thus, OPDM is a useful optical transmission technique for single-wavelength MA that offers various advantages. To increase the transmission capacity within the limited bandwidth of an optical modulator, we propose a signal-to-noise ratio (SNR) enhancement technique involving receive diversity achieved using the replica inevitably generated in OPDM. The SNR improvement was experimentally verified, via a 20-km optical transmission in OPDM-based single-wavelength MA. The enhanced SNR improves the modulation order and spectral efficiency, and relaxes the requirements of OPDM and the decoding complexity. The proposed replica-based receive diversity can increase the SNR of the uplink signal, reduce the OBI, and guarantees the advantages of OPDM; thus, it is a useful technique for effectively supporting the high data capacity and MA required for the next-generation PON.

Original languageEnglish
Article number8437132
Pages (from-to)4871-4879
Number of pages9
JournalJournal of Lightwave Technology
Volume36
Issue number20
DOIs
Publication statusPublished - 2018 Oct 15

Fingerprint

multiple access
multiplexing
division
signal to noise ratios
pulses
wavelengths
synchronism
replicas
interference
decoding
modulators
bandwidth
modulation
requirements
augmentation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Jung, Sun Young ; Kim, Chang Hun ; Joon Park, Hyoung ; Ha, Inho ; Han, Sang Kook. / Receive Diversity-Based SNR Improvement in OPDM-OFDMA-PON Single-Wavelength Multiple Access. In: Journal of Lightwave Technology. 2018 ; Vol. 36, No. 20. pp. 4871-4879.
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Receive Diversity-Based SNR Improvement in OPDM-OFDMA-PON Single-Wavelength Multiple Access. / Jung, Sun Young; Kim, Chang Hun; Joon Park, Hyoung; Ha, Inho; Han, Sang Kook.

In: Journal of Lightwave Technology, Vol. 36, No. 20, 8437132, 15.10.2018, p. 4871-4879.

Research output: Contribution to journalArticle

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