• Rishika Sen
• Sushmita
• Sunil
• Cherry Bhargava

Abstract-This paper presents the advancement in wireless communication from the initial stage of emerging wireless fidelity network and WiMAX to nowadays using massive MIMO technology and future hybrid technology using light fidelity(Li-Fi) , MIMO and Millimeter wave that is also the idea towards upcoming 5G technology to overcome the limitations of currently used Wi-Fi and 4G technology. As we know the number of users are gradually increasing in wireless network, their requirement also increases, due to this speed also decreases proportionally. Wi-Fi has the speed of 150mbps which is insufficient for the users. This gives limitation of Wi-Fi hence to overcome we introduce the concept of Li-Fi. Li-Fi stands for Light-Fidelity. Li-Fi is a type of visible light communication that uses LED as a medium to transfer information between the two users.

Keywords-Wireless communication, Wi-Fi, WiMAX, MIMO, Li-Fi, Communication System, 5g, Visible Light Communication

"Advancement in Wireless Communication System: A Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.1308-1311, January 2019, Available :http://www.jetir.org/papers/JETIRDW06211.pdf

"Advancement in Wireless Communication System: A Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp1308-1311, January 2019, Available at : http://www.jetir.org/papers/JETIRDW06211.pdf