Optimum transmission distance for relay-assisted free-space optical communication systems

Başgümüş A., Hiçdurmaz B., Temurtaş H., Namdar M., Altuncu A., Yılmaz G.

OPTIK, vol.127, no.16, pp.6490-6497, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 127 Issue: 16
  • Publication Date: 2016
  • Doi Number: 10.1016/j.ijleo.2016.04.070
  • Journal Name: OPTIK
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.6490-6497
  • Keywords: Free-space optical communication, Relay-assisted transmission, Atmospheric turbulence fading, Outage probability, Optimum transmission distance, Decode and forward relaying, Differential evolution algorithm, DIVERSITY
  • Bursa Uludag University Affiliated: Yes


In this paper, optimum transmission distances are obtained for different relay nodes in the serial and parallel decode-and-forward relaying schemes by using differential evolution algorithm in free-space optical communication systems. The transmission distances are investigated by optimizing the place of the relay nodes at a target outage probability of 10(-6). In this study, the numerical results reveal that the optimum transmission distances are increased for both the whole power margins and different number of relay nodes with the help of the proposed optimization technique. (C) 2016 Elsevier GmbH. All rights reserved.