MIMO equalization optimized for baud rate clock recovery in coherent 112 Gbit/sec DP-QPSK metro systems

Albert Gorshtein, Dan Sadot, Guy Dorman

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A novel MIMO equalization architecture optimized for baud rate clock recovery (BCR-MIMO) in coherent 112 Gbit/sec dual polarization quadrature phase shift keying (DP-QPSK) metro systems is proposed. This architecture is designed to decouple between multiple-input-multiple-output (MIMO) equalization and clock recovery (CR) loops, avoiding the interaction between them. The decoupling between the two loops is achieved, while maintaining similar MIMO equalizer performance, as compared to the butterfly-structured equalizer.

Original languageEnglish
Pages (from-to)23-27
Number of pages5
JournalOptical Fiber Technology
Volume22
DOIs
StatePublished - 1 Mar 2015

Keywords

  • Adaptive
  • Baud rate clock recovery
  • Coherent communication
  • Digital signal processing
  • MIMO equalization
  • Maximum likelihood sequence estimation (MLSE)
  • Symbol spaced equalization

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