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1) Application to Admission Control in Cellular Packet Networks:-

Based on the developing trends of mobile communication, 4G will have
broader bandwidth, higher data rate, and smoother and quicker handoff
and will focus on ensuring seamless service across a multitude of
wireless systems and networks. The key concept is integrating the 4G
capabilities with all of the existing mobile technologies through
advanced technologies. Application adaptability and being highly
dynamic are
the main features of 4G services of interest to users.
Emerging wireless technologies such as 4G tend to be packet-switched
rather than circuit-switched because the packet-based architecture
allows for better sharing of limited
wireless resources. In a packet network, connections (packet flows) do
not require dedicated circuits for the entire duration of the
connection. Unfortunately, this enhanced flexibility makes it more
difficult to effectively control the admission of connections into the
network.

2) 4G in normal life:-
2.1 Traffic Control:-
Beijing is a challenging city for drivers, with or without an Olympics
going on. The growing middle class, and their new-found ability to
purchase automobiles, is increasing the number of passenger vehicles
on the road at a staggering annual rate of 30%. 4G networks can
connect traffic control boxes to intelligent transportation management
systems wirelessly. This would create a traffic grid that could change
light cycle times on demand, e.g., keeping some lights green longer
temporarily to improve traffic flow. It also could make vehicle-based
on-demand "all green" routes for emergency vehicles responding to
traffic accidents, reducing the likelihood that those vehicles will
themselves be involved in an accident en route.
Using fiber to backhaul cameras means that the intelligence collected
flows one way: from the camera to the command center. Using a 4G
network, those images can also be sent from the command center back
out to the streets. Ambulances and fire trucks facing congestion can
query various cameras to choose an alternate route. Police, stuck in
traffic on major thoroughfares, can look ahead and make a decision as
to whether it would be faster to stay on the main roads or exit to the
side roads.

2.2 Sensors on Public Vehicles:-
Putting a chemical-biological-nuclear (CBN) warning sensor on every
government-owned vehicle instantly creates a mobile fleet that is the
equivalent of an army of highly trained dogs. As these vehicles go
about their daily duties of law enforcement, garbage collection,
sewage and water maintenance, etc., municipalities get the added
benefit of early detection of CBN agents. The sensors on the vehicles
can talk to fixed devices mounted on light poles throughout the area,
so positive detection can be reported in real time. And since 4G
networks can include inherent geo-location without GPS, first
responders will know where the vehicle is when it detects a CBN agent.

3) Security:-
Beijing has already deployed cameras throughout the city and sends
those images back to a central command center for the OLYMPIC
games2008. This is generally done using fiber, which limits where the
cameras can be hung, i.e., no fiber, no camera. 4G networks allow
Beijing to deploy cameras and backhaul them wirelessly. And instead of
having to backhaul every camera, cities can backhaul every third or
fifth or tenth camera, using the other cameras as router/repeaters.