Comparison of bit error rate estimation methods for QPSK CO-OFDM transmission

Thai Son Le, Mary E. McCarthy, Naoise Mac Suibhne, Elias Giacoumidis, Nick J. Doran, Andrew D. Ellis, Keith J. Blow

Research output: Contribution to journalArticlepeer-review


In this letter, we experimentally study the statistical properties of a received QPSK modulated signal and compare various bit error rate (BER) estimation methods for coherent optical orthogonal frequency division multiplexing transmission. We show that the statistical BER estimation method based on the probability density function of the received QPSK symbols offers the most accurate estimate of the system performance.

Original languageEnglish
Pages (from-to)2244-2247
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number22
Early online date4 Sept 2014
Publication statusPublished - 15 Nov 2014

Bibliographical note

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Funding: Sterlite Technologies and Finisar; FOX-C Project (318415);DISCUS Project (318137); European Communities 7th Framework Programme FP7 through the MODE-GAP Project (258033); EPSRC (EP/J017582/1).


  • bit error rate
  • coherent detection
  • coherent optical transmission
  • orthogonal frequency division multiplexing


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