LDPC-Coded OFDM for Heterogeneous Access Optical Networks

Ivan B. Djordjevic, Hussam G. Batshon

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


In this paper, we propose a heterogeneous optical access networking scenario, in which communication links between source and destination nodes are heterogeneous, composed of free-space optical, plastic optical fiber (POF), and indoor infrared (IR) links. To deal with bandwidth limitations of POF and IR links, a power-variable rate-adaptive low-density parity-check (LDPC)-coded orthogonal frequency division multiplexing (OFDM) scheme is used, while to deal with atmospheric turbulence, the spatial diversity is used. The rate-adaptive LDPC codes are designed using a modified progressive edge-growth (MPEG) algorithm. We show that with the proposed heterogeneous communication systems, we can deliver a high-speed optical signal (40 Gb/s and beyond) to an end-user.

Original languageEnglish (US)
Pages (from-to)611-619
Number of pages9
JournalIEEE Photonics Journal
Issue number4
StatePublished - Aug 2010


  • Heterogeneous optical networking
  • access networks
  • adaptive power loading
  • low-density parity-check (LDPC) codes
  • orthogonal frequency division multiplexing (OFDM)
  • rate-adaptive coding

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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