Retraction notice: A prompt CNN-FL model based on multi criteria for a smart vertical handoff in heterogeneous system

The publishers of the International Journal of Intelligent Unmanned Systems wish to retract the article by R. G. and B. S. (2020), “A prompt CNN-FL model based on multi criteria for a smart vertical handoff in heterogeneous system”, International Journal of Intelligent Unmanned Systems, Vol. 8 No. 4, pp. 293-306. https://doi.org/10.1108/IJIUS-02-2019-0014An internal investigation into a series of submissions has uncovered evidence that the peer review process was compromised. As a result of these concerns, the findings of the article cannot be relied upon. This decision has been taken in accordance with Emerald’s publishing ethics and the COPE guidelines on retractions. Despite numerous attempts to contact the authors, the journal has received no response; the response of the authors would be gratefully received. The publishers of the journal sincerely apologize to the readers.