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 language | English |
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Title of host publication | Broadband Access Communication Technologies X |
Editors | Katsutoshi Tsukamoto, Benjamin B. Dingel |
Publisher | SPIE |
ISBN (Electronic) | 9781510600072 |
DOIs | |
Publication status | Published - 2016 |
Event | Broadband Access Communication Technologies X - San Francisco, United States Duration: 2016 Feb 16 → 2016 Feb 17 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 9772 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Other
Other | Broadband Access Communication Technologies X |
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Country/Territory | United States |
City | San Francisco |
Period | 16/2/16 → 16/2/17 |
Bibliographical note
Publisher Copyright:© 2016 SPIE.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering