Current times are just the beginning of using 3 G mobile communication systems, while research on the next generation of mobile communications, 4G wireless and mobile networks begin to pave the way for the future. This paper will attempt to describe the future of wireless communications, the underlying technology, the devices that will be built to utilize the new wireless systems, and the
... [Show full abstract] applications that will be deployed on the next generation of mobile communications equipment. The topics covered are a short history of wireless, the present wireless situation, features and shortcomings of third generation wireless, and then an overview of overall 4G wireless feature is presented. Then finally, compare 3G to 4G from data access, capacity, and quality of service perspective. Pros and cans table is present for both 3G and 4G technologies.