Polarization-multiplexed rate-adaptive nonbinary-quasi-cyclic-LDPC-coded multilevel modulation with coherent detection for optical transport networks

Murat Arabaci, Ivan B. Djordjevic, Ross Saunders, Roberto M. Marcoccia

Research output: Contribution to journalArticle

68 Scopus citations

Abstract

In order to achieve high-speed transmission over optical transport networks (OTNs) and maximize its throughput, we propose using a rateadaptive polarization-multiplexed coded multilevel modulation with coherent detection based on component non-binary quasi-cyclic (QC) LDPC codes. Compared to prior-art bit-interleaved LDPC-coded modulation (BILDPC-CM) scheme, the proposed non-binary LDPC-coded modulation (NB-LDPC-CM) scheme not only reduces latency due to symbol- instead of bit-level processing but also provides either impressive reduction in computational complexity or striking improvements in coding gain depending on the constellation size. As the paper presents, compared to its prior-art binary counterpart, the proposed NB-LDPC-CM scheme addresses the needs of future OTNs, which are achieving the target BER performance and providing maximum possible throughput both over the entire lifetime of the OTN, better.

Original languageEnglish (US)
Pages (from-to)1820-1832
Number of pages13
JournalOptics Express
Volume18
Issue number3
DOIs
StatePublished - Feb 1 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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