Hard switching in hybrid FSO/RF link: Investigating data rate and link availability

Mansour Abadi, Mojtaba, Ghassemlooy, Zabih, Zvanovec, Stanislav, Bhatnagar, Manav and Wu, Yongle (2017) Hard switching in hybrid FSO/RF link: Investigating data rate and link availability. In: 2017 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, Piscataway, pp. 463-468. ISBN 978-1-5090-1526-9

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Abstract

This paper investigates the performance dependence of a hybrid free space optical (FSO)/radio frequency (RF) communication system on the data rate, link distance and link availability. In existing hybrid FSO/RF systems with hard switching, an algorithm is used to switch between FSO and RF and vice versa based on the feedback of the channel state information. In particular, two methods based on time hysteresis (TH) and power hysteresis (PH) are widely used in hard switching protocols. Although switching parameters including the time and power thresholds have been studied, the effect of link parameters has not been investigated in the literature. In this paper, we analyse the performance of a hybrid FSO/RF system under realistic channel conditions for both TH and PH switching schemes. By means of analysis and simulation, we show that increasing the data rate of individual FSO or RF link does not necessarily result in higher data rate and improved link availability in a hybrid FSO/RF system.

Item Type:	Book Section
Uncontrolled Keywords:	Optical communication, free space optics (FSO), hybrid FSO/RF systems, hybrid FSO/RF switching
Subjects:	P900 Others in Mass Communications and Documentation
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	09 Aug 2017 10:49
Last Modified:	12 Oct 2019 19:21
URI:	http://nrl.northumbria.ac.uk/id/eprint/31516

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