[PDF] Top 20 Comparison the Performance of Free-Space Optical Communication with OOK and BPSK Modulation under Atmospheric Turbulence

... system under study. Fig. 1(a). shows the block diagram of OOK system and ...FSO communication systems, the designers have to overcome some of the major challenges related to the optical wave ... See full document

... of modulation schemes which are suitable for FSO communication systems such as On-Off Keying (OOK), Pulse Amplitude Modulation (M-PAM), Differential Phase Shift Keying (DPSK), Binary Phase ... See full document

... probability performance and study of system performance with the effects of atmospheric turbulence, variations in background light, amplified spontaneous emission and system thermal noise and ... See full document

... Free-space optical communication (FSO) refers to communication of optical data over unguided propagation ...establishing communication links between satellites, ground ... See full document

... wireless communication systems become ever-more important and pervasive parts of our everyday life; system capacity and quality of service issues are becoming more ...in Free Space Optics (FSO) ... See full document

... Free-space optical (FSO) communications is a cost effective and high bandwidth access technique, which is receiving growing attention with recent commercialization successes ...FSO ... See full document

... This modulation is the most robust of all the PSKs since it takes the highest level of noise or distortion to make the demodulator reach an incorrect ...The BPSK modulation performance is ... See full document

... system performance is purely dependent on atmospheric ...the comparison of NRZ and RZ modulation format is analyzed for weather conditions haze, light fog and moderate fog for the free ... See full document

... of free space optics over Radio Frequency (RF) is that no Federal Communications Commission (FCC) licensing or single frequency allocating is ...holders. Free space optical links has ... See full document

... on free space optics has become a momentum in research because of its cost effectiveness and efficiency in transferring data at a high rate that is comparable to that for optical fiber ...of ... See full document

... The pin photodiode consists of p region and n regions separated by a lightly n-doped intrinsic I region. When an incident photon has energy, the photon can give up its energy and excite an electron. This generates ... See full document

... a optical source and Mach-Zehnder Modulator using as external modulator for intensity modulation of laser diode, followed by FSO channel and receiver ...received optical signal into an equivalent ... See full document

... Free-space optical communication is utilized for transmitting data between the source and destination using light traveling through free ...the modulation technique applied to ... See full document

... PPM modulation is that no signal is present except in the signal ...the optical path between the transmitter and the receiver goes through a change in length of one wavelength, there is a phase change of 2 ... See full document

... It is for the end user to access the mobile network. It is a portable station able to move wide areas and perform data and voice communication. It has the entire necessary user equipments for example an antenna, ... See full document

... FSO communication link Simulation is very important in designing and understanding the context of such link depending on technically and continually parameters, such as changing atmospheric parameters of ... See full document

... of atmospheric pressure and temperature on temporal broadening and study the effect of atmospheric dispersion on NRZ-OOK terrestrial free-space optical transmission ... See full document

... the optical signal because the system is working on the free space ...the optical signal with carrier signal to the photo-detector via a medium called FSO ...received optical signal ... See full document

... a free space laser link is subjected to ...low atmospheric attenuation during clear days and high attenuation during foggy ...influence optical transmissions heavily, because raindrops have ... See full document

... of optical emissions to transmit information has been used since ...of optical signals to transmit a message regarding the Grecian siege of Troy in approximately 1200 ...[1]. Optical fiber depended ... See full document