Abstract
Hybrid FSO/RF communication systems make use of an RF link with OWC link to achieve higher reliability along with high data rate communication. Both these (OWC and RF) channels are complementary in nature. We propose and analyze a new switching scheme for the hybrid FSO/RF system, in which both FSO and RF links are emphatically activated or deactivated according to the channel conditions. A single threshold level is decided for the Rayleigh-faded RF link, and two threshold levels are defined for FSO link under strong atmospheric turbulence conditions. Closed-form analytical expressions have been obtained for the bit error rate and outage probability for the proposed system.
Similar content being viewed by others
References
Andrews, L.C., Phillips, R.L., Hopen, C.Y.: Laser Beam Scintillation with Applications. SPIE Press, Bellingham (2001)
Khalighi, M.A., Uysal, M.: Survey on free space optical communication: a communication theory perspective. IEEE Commun. Surv. Tutor. 16(4), 2231–2258 (2014)
Djordjevic, I.B., Djordjevic, G.T.: On the high-speed communication over hybrid free-space optical (FSO) wireless fading channels. In: IEEE LEOS Annual Meeting Conference, pp. 833–834 (2009)
Usman, M., Yang, H.C., Alouini, M.S.: Practical switching based hybrid FSO/RF transmission and its performance analysis. IEEE Photonics J. 6(5), 1–14 (2014)
Chatzidiamantis, N.D., Karagiannidis, G.K., Kriezis, E.E., Matthaiou, M.: Diversity combining in hybrid RF/FSO systems with PSK modulation. In: IEEE ICC Proceedings, pp. 1–6 (2011)
Tapse, H., Borah, D.: Hybrid optical/RF channels characterization and performance study using low-density parity check codes. IEEE Trans. Commun. 57(11), 3288–3297 (2009)
Rakia, T., Yang, H.C., Alouini, M.S., Gebali, F.: Outage analysis of practical FSO/RF hybrid system with adaptive combining. IEEE Commun. Lett. 19(8), 1366–1369 (2015)
Mai, V.V., Pham, A.T.: Adaptive multi-rate designs for hybrid FSO/RF systems over fading channels. In: IEEE Globecom Workshop, pp. 469–474 (2014)
He, B., Schober, R.: Bit-interleaved coded modulation for hybrid RF/FSO systems. IEEE Trans. Commun. 57(12), 3753–3763 (2009)
Kumar, K., Borah, D.K.: Hybrid symbols for parallel optical/RF channels using BICM-ID. IET Electron. Lett. 47(21), 1189–1190 (2011)
Kumar, K., Borah, D.K.: Hybrid FSO/RF symbol mappings: merging high-speed FSO with low-speed RF through BICM-ID. In: IEEE Global Commun. Conference (Globecom), pp. 2941–2946 (2012)
Rakia, T., Yang, H.C., Gebali, F., Alouini, M.S.: Joint adaptive modulation and combining for hybrid FSO/RF systems. In: IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB), pp. 1–5 (2015)
Khatoon, A., Cowley, W.G., Letzepis, N.: Channel measurement and estimation for free space optical communications. In: Commun. Theory Workshop (AusCTW), pp. 112–117 (2011)
Enayati, S., Saeedi, H., Mokari, N.: Throughput maximization in hybrid FSO/RF communication system. In: IEEE IWOW Proceedings, pp. 51–54 (2015)
Balti, E., Guizani, M., Hamdaoui, B.: Hybrid Rayleigh and double-Weibull over impaired RF/FSO system with outdated CSI. In: IEEE ICC Conference on Mobile and Wireless Networking (2017)
Goldsmith, A.: Wireless Communication. Cambridge University Press, Cambridge (2005)
Gradshteyn, I.S., Ryzhik, I.M.: Table of Integrals, Series, and Products, 7th edn. New York, USA (2008)
Popoola, W.O., Ghassemlooy, Z.: BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence. J. Lightwave Technol. 27(8), 967–973 (2009)
Letzepis, N., Nguyen, K.D., Fabregas, A.G.I., Cowley, W.G.: Outage analysis of the hybrid free-space optical and radio frequency channel. IEEE J. Sel. Areas Commun. 27(9), 1709–1719 (2009)
Jia, Z., Ao, F., Zhu, Q.: BER performance of the hybrid FSO/RF attenuation system. In: 7th International Symposium on Antennas, Propagation & EM Theory, pp. 1–4 (2006)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Shrivastava, S.K., Sengar, S. & Singh, S.P. A new switching scheme for hybrid FSO/RF communication in the presence of strong atmospheric turbulence. Photon Netw Commun 37, 53–62 (2019). https://doi.org/10.1007/s11107-018-0792-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11107-018-0792-6