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

Mojtaba Mansour Abadi; Zabih Ghassemlooy; Stanislav Zvanovec; Manav Bhatnagar; Yongle Wu

doi:10.1109/ICCW.2017.7962701

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

Mojtaba Mansour Abadi, Zabih Ghassemlooy, Stanislav Zvanovec, Manav Bhatnagar, Yongle Wu

Mathematics, Physics and Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

22 Citations (Scopus)

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.

Original language	English
Title of host publication	2017 IEEE International Conference on Communications Workshops (ICC Workshops)
Place of Publication	Piscataway
Publisher	IEEE
Pages	463-468
ISBN (Print)	978-1-5090-1526-9
DOIs	https://doi.org/10.1109/ICCW.2017.7962701
Publication status	E-pub ahead of print - 3 Jul 2017

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title = "Hard switching in hybrid FSO/RF link: Investigating data rate and link availability",

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.",

keywords = "Optical communication, free space optics (FSO), hybrid FSO/RF systems, hybrid FSO/RF switching",

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T1 - Hard switching in hybrid FSO/RF link: Investigating data rate and link availability

AU - Mansour Abadi, Mojtaba

AU - Ghassemlooy, Zabih

AU - Zvanovec, Stanislav

AU - Bhatnagar, Manav

AU - Wu, Yongle

PY - 2017/7/3

Y1 - 2017/7/3

N2 - 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.

AB - 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.

KW - Optical communication

KW - free space optics (FSO)

KW - hybrid FSO/RF systems

KW - hybrid FSO/RF switching

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DO - 10.1109/ICCW.2017.7962701

M3 - Chapter

SN - 978-1-5090-1526-9

SP - 463

EP - 468

BT - 2017 IEEE International Conference on Communications Workshops (ICC Workshops)

PB - IEEE

CY - Piscataway

ER -

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

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