Subcarrier Intensity Modulated Free-space Optical Communication Systems
نویسنده
چکیده
ii List of Figures viii List of Tables xiv Glossary of Abbreviations xv Glossary of Symbol xviii Dedication xxiv Acknowledgements xxv Declaration xxvi Chapter One Introduction 1 1.1 Background 1 1.2 Research Motivation and Justification 5 1.3 Research Objectives 11 1.4 Thesis Organisation 13 1.5 Original Contributions 15 1.6 List of Publications and Awards 18 Chapter Two Fundamentals of FSO 21 2.
منابع مشابه
Free-Space Optical Communication in Atmospheric Turbulence using DPSK Subcarrier Modulation
The bit error rate (BER) expression and performance of free-space optical communication link in clear but turbulent atmosphere using subcarrier intensity modulation (SIM) with differential phase shift keying (DPSK) is presented. The practical linear combining technique suitable for differentially modulated data (selection combining) is considered and its performance evaluated under weak atmosph...
متن کاملFree-space optical communication employing subcarrier modulation and spatial diversity in atmospheric turbulence channel
An expression for the bit error rate of a multiple subcarrier intensity-modulated atmospheric optical communication system employing spatial diversity is derived. Spatial diversity is used to mitigate scintillation caused by atmospheric turbulence, which is assumed to obey lognormal distribution. Optimal but complex maximum ratio, equal gain combining (EGC) and relatively simple selection combi...
متن کاملPerformance of sub-carrier modulated Free-Space Optical communication link in negative exponential atmospheric turbulence environment
Free-Space Optical (FSO) communication is reputed for its ability to proffer solution to the access network bottle-neck but when used over long range communication links, it suffers from scintillation caused by the atmospheric turbulence. The scintillation is modelled using the negative exponential distribution. Hereby, we present the outage probability and the bit error probability equations o...
متن کاملBER and Outage Probability of DPSK Subcarrier Intensity Modulated Free Space Optics in Fully Developed Speckle
-In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment. To mitigate the scintillation effect, the selection combining spatial diversity scheme (SelC) is employed at the receiver. Bit error rate (BER) and outage probability (Pout) analysis are presented wit...
متن کاملMIMO Free-Space Optical Communication Employing Subcarrier Intensity Modulation in Atmospheric Turbulence Channels
In this paper, we analyse the error performance of transmitter/receiver array free-space optical (FSO) communication system employing binary phase shift keying (BPSK) subcarrier intensity modulation (SIM) in clear but turbulent atmospheric channel. Subcarrier modulation is employed to eliminate the need for adaptive threshold detector. Direct detection is employed at the receiver and each subca...
متن کامل