On the performance of millimeter wave-based RF-FSO links with HARQ feedback

Behrooz Makki, Tommy Svensson, Mohamed-Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations


This paper studies the performance of hybrid radio-frequency (RF) and free-space optical (FSO) links in the cases with and without hybrid automatic repeat request (HARQ). Considering millimeter wave (mmwave) characteristics in the RF link and pointing errors in the FSO link, we derive closed-form expressions for the message decoding probabilities as well as the throughput and the outage probability of the RF-FSO setups. We also evaluate the effect of various parameters such as power amplifiers efficiency, different transmission techniques in the FSO link, pointing errors in the FSO link as well as different coherence times/symbol rates of the RF and the FSO links on the throughput and outage probability. The results show the efficiency of the RF-FSO links in different conditions. Moreover, the HARQ can effectively improve the outage probability/energy efficiency, and compensate the effect of hardware impairments in RF-FSO links.
Original languageEnglish (US)
Title of host publication2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781509032549
StatePublished - Dec 24 2016


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