What is the difference or added between the application of generation 4 and 5 generation in the field of communications?

The4G IMT-advanced cellular and wireless systems comprise mainly LTE advanced [26] (3GPP family) and Mobile WiMAX advanced (IEEE family,802.16m) [27]. Both LTE-advanced and IEEE802.16m standards further increases data rates and enhances system spectral efficiency and also supports compatibility with their respective earlier releases. whereas the major difference, from a user point of view, between current generations and expected5G

techniques must be something else than increased maximum throughput; other requirements

include:

Lower battery consumption.

Lower outage probability; better coverage and high data rates available at cell edge.

Multiple concurrent data transfer paths.

Around1Gbps data rate in mobility.

More secure; better cognitive radio/SDR Security.

Higher system level spectral efficiency.

Worldwide wireless web (WWWW), wireless-based web applications that include full

multimedia capability beyond4G speeds.

More applications combined with artificial intelligent (AI) as human life will be

surrounded by artificial sensors which could be communicating with mobile phones.

Not harmful to human health.

Cheaper traffic fees due to low infrastructure deployment costs. 

The5G core is believed to be a Re-configurable, Multi-Technology Core.

The core could be a convergence of new technologies such as nanotechnology, cloud Computing and cognitive Radio, and based on All IP Platform