Outage analysis of q-duplex RF/FSO relaying

Jamali Kooshkghazi V, Michalopoulos D, Uysal M, Schober R (2015)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2015

Event location: Brüssel BE

ISBN: 978-1-4673-6540-6

DOI: 10.1109/ISWCS.2015.7454354


In this paper, we propose and analyze a novel q-duplex radio frequency/free space optical (RF/FSO) relaying protocol for a mixed RF and hybrid RF/FSO communication system. In our scheme, several mobile users transmit their data over an RF link to a relay node (e.g. a small cell base station) and the relay forwards the information to a destination (e.g. a macro cell base station) over a hybrid RF/FSO backhaul link. The RF links are full-duplex with respect to the FSO link and half-duplex with respect to each other, i.e., either the user-relay RF link or the relay-destination RF link is active. Depending on the channel statistics, the q-duplex relaying protocol may reduce to full-duplex relaying, when the quality of the FSO link is sufficiently high, or to half-duplex relaying, when the FSO link becomes unavailable due to severe atmospheric conditions. We derive an analytical expression for the end-to-end outage probability of the proposed protocol when the fading for the user-relay RF link, the relay-destination RF link, and the relay-destination FSO link are modelled as Rayleigh, Ricean, and Gamma-Gamma distributed, respectively. Our simulation results confirm the analytical derivations and reveal the effectiveness of the proposed q-duplex protocol and its superiority compared to existing schemes.

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Jamali Kooshkghazi, V., Michalopoulos, D., Uysal, M., & Schober, R. (2015). Outage analysis of q-duplex RF/FSO relaying. In IEEE (Eds.), Proceedings of the 2015 International Symposium on Wireless Communication Systems (ISWCS). Brüssel, BE.


Jamali Kooshkghazi, Vahid, et al. "Outage analysis of q-duplex RF/FSO relaying." Proceedings of the 2015 International Symposium on Wireless Communication Systems (ISWCS), Brüssel Ed. IEEE, 2015.

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