4G stands for fourth generation data transmission speed, also called as 4G LTE which come along with modern mobile phones. The speed of this 4G technology is 100Mbps, 150Mbps, and 300Mbps based on the service provider. The speed of 4G is extremely fast than 2G and 3G. It is an end-to-end Internet Protocol connection. The cellular providers have the opportunity to offer the data access to a wide variety of devices. 4G technology provides mobility with the flexible and reliable connection. Also in term of speed Lifi is more faster than Wifi where 4g comes under lifi. so 4g connection is faster nowadays.
Although carriers still differ concerning whether to construct 4G information networks making use of Long Term Evolution (LTE) or Worldwide Interoperability for Microwave Access WiMAX, all service providers appear to agree that OFDM is one of the chief indicators that a solution can be properly marketed as being 4G. OFDM is a type of electronic modulation where a signal is split into several narrowband channels at various frequencies. This is extra efficient compared to TDMA, which separates networks into time ports as well as has several customers take turns transmitting bursts or CDMA, which simultaneously transfers numerous signals on the very same channel.
When totally applied, 4G is anticipated to make it possible for pervasive computing, in which synchronized links to multiple high-speed networks will offer smooth handoffs throughout a geographical area. Coverage enhancement modern technologies such as femtocell and picocell are being created to address the demands of mobile individuals in residences, public structures as well as offices, which will certainly free up network sources for mobile individuals who are wandering or who remain in more remote service areas.
Advantages of 4g Technology
IP based mobile system
High speed, high capacity, and low cost per bit
Global access, service portability, and scalable mobile services
Seamless switching, and a variety of Quality of Service driven services
Better scheduling and call admission control techniques
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