Impact of misalignment parameter on performance of free-space optical communication system

Sahoo, Pritam Keshari; Yadav, Ajay Kumar

doi:10.1007/s11082-022-04438-5

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The probability of misidentifying datum 1 as datum 0 is set to P 1−0 , and the probability of misidentifying datum 0 as datum 1 is set to P 0−1 ; then, we can obtain that [22,27]:…”

Section: Pimmentioning

confidence: 99%

“…The PAM mode requires a large transmission power, a complex modulation and demodulation circuit, and a high bit error rate. At the same time, in the above-mentioned modulation methods, it is necessary to ensure that the clocks of the transmitting system and the receiving system are strictly aligned, or data transmission may be misaligned, which may lead to information exchange failure between the two information systems [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Free Space Optical Communication Networking Technology Based on a Laser Relay Station

Ding

Wang

et al. 2023

Applied Sciences

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Optical communication modulation technology and networking technology are two important technologies for constructing free-space optical (FSO) communication. In this paper, pulse width modulation (PWM) is used to realize free-space optical communication. The process of signal modulation and demodulation is implemented by means of a field programmable gate array (FPGA). An optical communication relay system is constructed to realize communication networking. The binary data bits in the communication process are converted into pulse signals of different widths, the data demodulation process is realized by sampling with a high-speed analog-to-digital converter (ADC), the data level is determined by counting the proportion of high and low voltages sampled in a pulse period. The relay system analyzes the routing target after receiving the pulse signal from the transmitter, and then sends the data to the target receiver. The experimental results show that the constructed system can achieve point-to-multipoint free-space optical communication. Additionally, using ADC to demodulate the received signal increases the stability of the free-space optical communication system. This system provides the design prototype system of FSO communication networking technology.

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“…The probability of misidentifying datum 1 as datum 0 is set to P 1−0 , and the probability of misidentifying datum 0 as datum 1 is set to P 0−1 ; then, we can obtain that [22,27]:…”

Section: Pimmentioning

confidence: 99%