Next-generation OFDMA-based passive optical network architecture supporting radio-over-fiber

Yu Min Lin*, Po-Lung Tien

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

In this paper, we propose a novel architecture for next-generation orthogonal frequency division multiple access (OFDMA)-based passive optical networks (PON's), referred to as ROFPON. Besides carrying local broadband OFDMA data, ROFPON seamlessly supports radio-over-fiber (RoF) transports between the central office and multiple remote antennas at end users without using costly WDM lasers. We analytically and experimentally study the receiver sensitivity to OFDMA signals and the radio frequency (RF) signal's performance. By corroborating simulation results with experimental results, we discuss the determination of crucial system parameters, such as the optimal broadband-to-radio power ratio, and the exploitation of a notch filter for removing RF interference. Experimental results show that the integrated 10 Gb/s OFDMA and three 20 MHz RF signals are successfully transported both downstream and upstream over a 20 km single-mode-fiber PON. Finally, experimental results demonstrate that QPSK-encoded WiMAXformat RF signals are transmitted/relayed upstream with E-O-E conversion at each optical network unit (ONU), and received error-free at the optical line terminal after cascading 32 ONU's.

Original languageEnglish
Article number5514392
Pages (from-to)791-799
Number of pages9
JournalIEEE Journal on Selected Areas in Communications
Volume28
Issue number6
DOIs
StatePublished - 1 Aug 2010

Keywords

  • Orthogonal frequency division multiplexing access (OFDMA)
  • optical fiber communication
  • optical modulation
  • passive optical network (PON)
  • radio frequency (RF)
  • radio over fiber (RoF)

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