Compensation of impairments in the radio over fiber infrastructure

Atso Hekkala, Mika Lasanen, Mikko Hiivala, Luis Vieira, Nathan J. Gomes, Vincent Kotzsch, Gerhard Fettweis

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

Abstract

In this chapter, methods of dealing with the non-ideality of the radio over fiber infrastructure are described. Two general problems and their solutions are addressed: first, the nonlinear behavior of the radio over fiber links, dealt with through baseband compensation; second, the impact of fiber as well as propagation delays to the system performance. The compensation results show that the nonlinear distortions can be considerably reduced by low complexity predistortion. The timing delay analysis reveals that, particularly in OFDM based cellular wireless transmission setups with joint signal processing, the impact of the inter-symbol interference caused by transmitters with a large time difference of arrival only becomes critical if the system operates at a high SNR. Dependent on the pathloss environment and the cyclic prefix length, in the systems investigated, the additional asynchronous interference is rapidly attenuated so that it is almost not noticeable.
Original languageEnglish
Title of host publicationNext generation wireless communications using radio over fiber
PublisherWiley
Pages211-246
ISBN (Print)978-1-11995339-5
DOIs
Publication statusPublished - 2012
MoE publication typeA3 Part of a book or another research book

Keywords

  • nonlinearity
  • predistortion
  • radio over fiber
  • compensation architecture
  • joint signal processing
  • signal delays analysis
  • time differences of arrival
  • asynchronous interference

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  • Cite this

    Hekkala, A., Lasanen, M., Hiivala, M., Vieira, L., Gomes, N. J., Kotzsch, V., & Fettweis, G. (2012). Compensation of impairments in the radio over fiber infrastructure. In Next generation wireless communications using radio over fiber (pp. 211-246). Wiley. https://doi.org/10.1002/9781118306017.ch10