PRIYADARSHANI, R., et al. Impact of Channel Correlation on Different Performance Metrics of OSSK-Based FSO Systems. IEEE Transactions on Wireless Communications. 2020, 19(3), 1593-1609. ISSN 1536-1276. DOI 10.1109/TWC.2019.2955449.
In this paper, we study the impact of correlation on the bit error rate (BER) and the channel capacity of a free-space optical (FSO) multiple-input-multiple-output (MIMO) system employing optical space shift keying (OSSK) over a fading channel. In order to study a practical correlated channel, we consider the effect of channel correlation due to both small-and large-scale eddies and show that the use of OSSK over correlated FSO channel can lead to an improved system performance with increasing correlation level of upto 0.9. In this work, we first develop an analytical framework for different performance metrics of the OSSK multiple-input single-output system with correlation and then extend our investigation by proposing an asymptotically accurate mathematical framework for MIMO. We also validate all the analytical results using MATLAB simulations. Finally, we develop an experimental setup of FSO with two correlated links to study the throughput and latency of the links at different turbulence levels.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Institute of Electrical and Electronics Engineers
dc.relation.ispartof
IEEE Transactions on Wireless Communications
dc.subject
Arbitrary correlation
eng
dc.subject
bit error rate
eng
dc.subject
free-space optical (FSO) communications
eng
dc.subject
Gamma-Gamma distribution
eng
dc.subject
MIMO
eng
dc.subject
optical space shift keying
eng
dc.title
Impact of Channel Correlation on Different Performance Metrics of OSSK-Based FSO Systems
info:eu-repo/grantAgreement/Ministry of Education, Youth and Sports/LT/LTC18008/CZ/Transmission of Millimeter Waves over Fiber and Free-space Optical Infrastructures/TraFFic