Technology, mobile and computer

4G wireless systems are the fourth generation of cellular wireless communication. It is an advanced of 3G and 2G families. The 4G system is used to provide secure mobile broadband solution to laptop computer, smart phones, wireless modems and many other mobile devices. It is a high speed digital wireless system. It provides many features such as high speed, long range and many more. The first generations are used for only voice communications. The next generations come with wireless systems. The advantages of 4G wireless systems are that supports voice, streaming video, multimedia, internet and many broadband services, high speed, high capacity, low cost, global access, better scheduling, variety of services, call admission control techniques, better spectral efficiency and many more. It is more expensive. It is a pocket based network. It consists of paging, local registration and handover. In modern days, the service is more essential. Third generation systems were implemented in the year of 1999.