Evaluation of Low diversity Coding Schemes in Optical Communication - Miriampally, Venkata Raghavendra
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In optical communication system, as the link length increases signal gets more and more distorted. So, it becomes difficult to stimulate the signal. Adaptive filter is a recursive filter, which provides an estimate with minimum mean square.Measurements of the bit error rate at various signal to noise ratios and also at different number of samples in a bit are observed,which represents that an increase in signal to noise ratio or the number of samples in a bit, causes the bit error rate to decrease. Estimation of optical signal using adaptive filter reduces the BER effectively.In a fiber-optic…mehr

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Produktbeschreibung
In optical communication system, as the link length increases signal gets more and more distorted. So, it becomes difficult to stimulate the signal. Adaptive filter is a recursive filter, which provides an estimate with minimum mean square.Measurements of the bit error rate at various signal to noise ratios and also at different number of samples in a bit are observed,which represents that an increase in signal to noise ratio or the number of samples in a bit, causes the bit error rate to decrease. Estimation of optical signal using adaptive filter reduces the BER effectively.In a fiber-optic system at long distances or high data rates, the system can be limited either by the losses (attenuation-limited transmission) or, assuming that thelink is not limited by the source or detector speed, by the dispersion of the fiber(dispersion-limited transmission). Here we demonstrate how the optimum link lengthcan be determined in different aspects like Dispersion & attenuation.There are somany techniques in designing the driver circuit for sources. In this thesis, different types of driver circuits with the help of MESFETs, HFETs, BJTs,HBTs & CMOS technologies are discussed.
Autorenporträt
M.V.Raghavendra is working as Head, Dept of ECE at Swathi Institute of Technology & Sciences,he received his PhD from Singhania University & is a Scholar, Department of Instrument Technology, College of Engineering, Andhra University Visakhapatnam, India. He has received his M.Tech Degreefrom ECE Dept, College of Engineering, Andhra University.