IMPLEMENTING BLUE-GREEN SPECTRAL RANGE CHANNEL CHARACTERISATION FOR UNDERWATER OPTICAL WIRELESS COMMUNICATION SYSTEM FOR SAILORS AND SUBMARINES

Underwater optical wireless communication system (UOWCS) provides extraordinary enthusiasm to the military, industry, and mainstream researchers, as it assumes a significant job in strategic observation, pollution checking, oil control and upkeep, seaward inquiries, environmental change, and oceanography research. In acoustic communication the data transfer capacity is restricted. Channel representation, characterisation of wavelength-dependent channels for UOWCS, parameter plans, suitable wavelength, appropriate light used, various noise sources, analysis of received and transmitted power for UOWCS are discussed in this paper. The aim of this research is to develop test, and introduce an UOWC system using consumer-grade components: underwater connectivity with high throughput and versatility. In UOWCS, light is used as a medium for transmitting and receiving data. Here, 6 LEDs operating at 450 nm wavelength that is blue-green spectral range are seriously connected in an array fashion to permit the device to provide more optical power than a single LED pixel. The higher the carrier SNR, the higher the QAM level, and hence the more bits that can be loaded onto that channel.The BER target of 3.8x10(-3) below which "error-free" data transmission can be achieved using Forward error correction (FEC) with a 7% overhead of the gross data rate.