Universal filtered multi-carrier system for asynchronous uplink transmission in optical access network

Soo Min Kang, Chang Hun Kim, Sang Kook Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In passive optical network (PON), orthogonal frequency division multiplexing (OFDM) has been studied actively due to its advantages such as high spectra efficiency (SE), dynamic resource allocation in time or frequency domain, and dispersion robustness. However, orthogonal frequency division multiple access (OFDMA)-PON requires tight synchronization among multiple access signals. If not, frequency orthogonality could not be maintained. Also its sidelobe causes inter-channel interference (ICI) to adjacent channel. To prevent ICI caused by high sidelobes, guard band (GB) is usually used which degrades SE. Thus, OFDMA-PON is not suitable for asynchronous uplink transmission in optical access network. In this paper, we propose intensity modulation/direct detection (IM/DD) based universal filtered multi-carrier (UFMC) PON for asynchronous multiple access. The UFMC uses subband filtering to subsets of subcarriers. Since it reduces sidelobe of each subband by applying subband filtering, it could achieve better performance compared to OFDM. For the experimental demonstration, different sample delay was applied to subbands to implement asynchronous transmission condition. As a result, time synchronization robustness of UFMC was verified in asynchronous multiple access system.

Original languageEnglish
Title of host publicationBroadband Access Communication Technologies X
EditorsKatsutoshi Tsukamoto, Benjamin B. Dingel
PublisherSPIE
ISBN (Electronic)9781510600072
DOIs
Publication statusPublished - 2016
EventBroadband Access Communication Technologies X - San Francisco, United States
Duration: 2016 Feb 162016 Feb 17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9772
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherBroadband Access Communication Technologies X
CountryUnited States
CitySan Francisco
Period16/2/1616/2/17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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