Comparison of modulation techniques for underwater optical wireless communication at Mallipattinam, Tamil Nadu
In this survey, we explore the possessions of water attenuation on an underwater optical wireless communications system by using different modulation techniques(QPSK, ASK and OOK) and laser based systems. For underwater light propagation, scattering and absorption are the leading sources that may bound the transmission length. We consider the parameters such as transmitter optical power, transmitter divergence angle, transmitter efficiency, receiver efficiency, receiver diameter, receiver sensitivity, chlorophyll concentration and water concentration and also converse the other considerations. The laser based wireless communication systems are feasible solution to high speed and large distance data transmission applications with data rate of 155 Mbps, wavelength of 650 nm and power of 19 mw.
2016 International Conference on Emerging Trends in Engineering, Technology and Science (ICETETS)