Performance of adaptive algorithms for compensation of radio over fiber links

Atso Hekkala, Mika Lasanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

17 Citations (Scopus)


This paper considers the adaptive predistortion of the nonlinear distortions in a Radio over Fiber (RoF) link. In particular, we modify and compare two adaptive algorithms developed originally for the compensation of the linear systems, namely LMS and variable step size normalized LMS (VS NLMS). A recursive least squares (RLS) solution is used as a reference. Our simulation results indicate that over 40 dB improvement of adjacent channel power ratios can be achieved via the predistortion. Furthermore, we show that in the compensation of the nonlinear RoF link, the LMS can be used in such a way that its performance is comparable to more complex RLS.
Original languageEnglish
Title of host publication2009 Wireless Telecommunications Symposium
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)978-1-4244-2589-1
ISBN (Print)978-1-4244-2588-4
Publication statusPublished - 2009
MoE publication typeNot Eligible
EventWireless Telecommunications Symposium, WTS 2009 - Prague, Czech Republic
Duration: 22 Apr 200924 Apr 2009


ConferenceWireless Telecommunications Symposium, WTS 2009
Abbreviated titleWTS 2009
CountryCzech Republic


  • LMS
  • polynomial predistorter
  • predistortion
  • RLS
  • RoF

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