a complete information about wireless communication for scholar

2. The technology has evolved with time. With the growth of
technology, there have been made many devices which don’t
need wires to connect to different devices, i.e. they connect
wirelessly. There are many devices that run wirelessly. In
recent times these wireless devices have come into demand and
are trending. We can see these devices almost everywhere.
WIRELESS
TECHNOLOGY

3. In the history of wireless technology, the demonstration of the theory
of electromagnetic waves by Heinrich Hertz in 1888 was important.
The theory of electromagnetic waves was predicted from the research
of James Clerk Maxwell and Michael Faraday. Hertz demonstrated
that electromagnetic waves could be transmitted and caused to travel
through space at straight lines and that they were able to be received
by an experimental apparatus. The experiments were not followed up
by Hertz. Jagadish Chandra Bose around this time developed an early
wireless detection device and helped increase the knowledge of
millimeter length electromagnetic waves. Practical applications of
wireless radio communication and radio remote control technology
were implemented by later inventors, such as Nikola Tesla.
HISTORY

4. Portable Computer
Internet Tablet
Smartphone
Wi-Fi
Bluetooth
Radio
TYPES OF WIRELESS
DEVICE OR TECHNOLOGY

5. A portable computer is a
computer that is designed to be
moved from one place to another
and includes a display and
keyboard. Portable computers,
by their nature, are generally
microcomputers. Portable
computers, because of their size,
are also commonly known as
'Lunchbox' or 'Luggable‘
computers.
A PDA with a web browser is an
Internet tablet, an Internet
appliance in tablet form. It does
not have as much computing power
as a full tablet computer and its
applications suite is limited, and it
can not replace a general purpose
computer. Internet tablets
typically feature an MP3 and video
player, a web browser, and a picture
viewer.
Portable Computer Internet Tablet
TYPES

6. A smartphone is a mobile phone
with an advanced mobile
operating system which combines
features of a personal computer
operating system with other
features useful for mobile or
handheld use. They typically
combine the features of a cell
phone with those of other popular
mobile devices, such as personal
digital assistant (PDA), media
player and GPS navigation unit.
Marconi did transmit the first
radio signal across the Atlantic.
The term "wireless" came into
public use to refer to a radio
receiver or transceiver (a dual
purpose receiver and transmitter
device), establishing its usage in
the field of wireless telegraphy
early on; now the term is used to
describe modern wireless
connections such as in cellular
networks and wireless broadband
Internet.
Smartphone Radio
TYPES

7. Wi-Fi is a wireless local area
network that enables portable
computing devices to connect easily
to the Internet. Standardized as
IEEE 802.11 a,b,g,n, Wi-Fi
approaches speeds of some types of
wired Ethernet. Wi-Fi has become
the de facto standard for access in
private homes, within offices, and at
public hotspots.
Bluetooth is a major form of
wireless communication. It is a
simple sharing measure used in
smartphones, personal
computers ,speakers ,etc. it has a
range about 10m and can be
extended up to 100m. It is a
cheap, simple and easy to use
form of wireless communication
Wi-Fi Bluetooth
TYPES

8. • Mobility – user device can be
moved easily within the wireless
range
• Neat and easy Installation – since
no cable running here and there,
just start up the wireless device
and you’re ready to rumble
• Less cost for cabling infrastructure
and device
• More user supported – cable
device have limited slots whereas
wireless does not.
• Relatively lower bandwidth speed
– example: although currently
802.11/n could reach 128 Mbps,
UTP cable can reach 1 Gbps. And
more user mean each bandwidth
get smaller. That is why currently
wired backbone network is still
preferred.
• Ease of access means more
security also necessary to protect
data and/or bandwidth, since
people can connect anywhere
within range without seeking
network plug.
Advantages Disadvantages
DISTINGUISHING

9. The swift development of wireless has enabled so many parallel
technologies, increased productivity and even saved countless lives.
The future for wireless looks set to include even more applications
which can give humans an edge. Another positive of this growth is
that wireless technology has gotten really cheap which means that
more people have access to it. Wireless innovations have made the
world a much smaller place!
CONCLUSION