Low Cost Led Source Based Transmission System for Achieving Freespace Li-Fi Multimedia Communication

Physical network layer linking microprocessors are often used in congested office rooms. In forming new extensions with physical networking cables, may not be faceable or may not advantageous. Linking such communication to devices through free space transmission of multimedia signals with the use of optoelectronic devices is a major developing research area today. For that, different low cost optoelectronic sources were need to be tested while the same source should be able to use for normal light illumination of such office rooms. During this research project, a novel multimedia transmission system has been developed as an alternative solution for the aforementioned problem. Wi-Fi (Wireless Fidelity) based systems with radio wave may effects human lives. Nevertheless, the data transference speed is higher in Li- Fi (Light Fidelity) than Wi-Fi. Li- Fi based system which can be used for environmentally friendly non radiation hazardous, high data rate transmission network developing with low cost. The proposed system is at premium capable transmission level at present in order to transmit one multimedia component; sound waves using LI-FI. Using the proposed model, further development of the complete Li-Fi system can be made using locally available low cost components, which is an advantage. The concept of LED switching /blinking rate controlling was utilized here. The data transference rate is very high, so that it is impossible for the hackers to get through the connections. Nowadays, security is the rising demand for wireless data communication. The existing radio spectrum below 10 GHz has become inadequate. Hence, the wireless communication company has replied to this challenge by considering the radio spectrum beyond 10 GHz. There are many reasons which have been considered for the necessity to cover wireless network technologies expected to ever-increasing stipulation for wireless communications. Wi-Fi is facing many challenges; with manageability, service scalability, bandwidth capacity, cost effectiveness, availability, efficiency and security [Begam et el. (2021)].