Evolution of wireless access technology reaches its fourth generation (4G) and a tremendous growth of numbers of mobile subscribers over the last decade revolutionized the way of communication. Wireless access technologies have followed different evolutionary paths but their aim was single i.e. high performance and efficient. The successful Mobile Wireless Technology provides high speed services to the users and become popular and successful as it has simplified the communication. Mobile Wireless Technologies have evolved to four generations of technologies and in present the implementation work of 5G is going on, which is not officially used for any current technology. With the ever-increasing demand for the newest gadgets, faster mobile broadband and increased efficiency of applications such as GPS, we may see the future generations of 5G technologies. These days we let mobiles rule our lives.