4G stands for fourth-generation
wireless cellular service that is almost 10 times faster than 3G network. The
1G or 1st generation was the old analog cellular system. That was
obviously super slow. 2G or 2nd generation moves to digital but they
were still very much slow, somewhere around 10-200 kbps. The first iPhone was
2G. 3G is a much faster digital and it starts around 384 kbps+. 4G systems like
LTE and WiMAX claim to initially start around 5 mbps which is a lot higher than
all the previous systems. But 4G isn’t just faster than 3G, the 4G network also
tend to have a lot more capacity than 3G network. On 4G, there should be a lot
more data plans. But sometimes people argue that there is no such difference in
3G and 4G as if they both serve the same service. Because, 3G networks
sometimes are really faster than the beginning of 4G. For example, HSPA+, is 3G
basically but it is really fast 3G somewhere around 7 mbps.
4G was first experimented in the
U.S. beginning in 2009. Smart phones or recent digital devices are functioned
to stream videos and music and so internet speed became so important. Whenever
someone is moving with high mobility, it will require huge data rate. So, in
order to make the requirement of high speed mobility like trains, bullet
trains, super cars, we need 4G. 4G is developed quite highly that it can be
compared with broadband connections where previous cellular speeds were much
slower than high speed broadband connections to computer.
Requirements: To have access to 4g network, a 4G capable device is
required. Devices with 4G capabilities are available widely these days. 4G
compatible devices usually have larger screens, extremely fast RAM, great
processors and powerful batteries.
There are several types of 4G such
as 4G LTE, WiMAX. But LTE is much faster as it can reach up to 100 mbps while
WiMAX can reach up to 70 mbps.
Why 4g?
4G makes the data transmitting or
accepting rate real faster. When a device send a picture to another via wireless
system, it disassembly converts into separated codes and when the other device
receives the codes it reassembles and converts them into a picture. So, the
converting and assembling rate depends upon the networking system. 4G is
developed for doing these things real faster. It saves time and makes things
quicker. Communications between 4G networks becomes smoother and faster.
Why 4G is faster?
The modulation and coding scheme of
4G network contains a lot more symbols or bits. It also can have a bandwidth of
20 MHz in a single carrier while a 3G network can have only 5MHz.
So, 4G is an evolution of mobile networks. As
we approach to the future, we will be getting faster networks with the
development of science and technology.
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