This document discusses wireless technology and wireless networks. It defines wireless as technology that does not require wires and describes various wireless systems including radio, satellite radio and TV, and wireless internet access. It provides a brief history of wireless networks and defines types of wireless networks including WPANs, WLANs, WMANs, and WWANs. It also discusses wireless access points, wireless routers, and different wireless communication technologies such as radio transmission, microwave transmission, infrared waves, and light wave transmission.

1. “In The Name Of ALLAH,
The Most Beneficent &
The Most Merciful"

2. Wireless Presentation

3. What is Wireless?
The word wireless meaning
"having no wires”.
So wireless is a piece of technology
what does not require any wires.
The distances involved may be
short such as a few meters as
in television remote control, or long
like thousands or millions of
kilometers for radio communications.

4. Wireless Systems
 AM radio,
 FM radio,
 Satellite radio,
 Satellite TV,
 Satellite Internet access
 Broadcast TV

5. Wireless Networks History
In 1970, Norm Abramson, a professor of engineering at the
University of Hawaii, developed a radio-based communications
system known as ALOHANET.
This was the world’s first wireless packet-switched network,
which allows multiple devices to transmit and receive data
simultaneously.

6. Wireless Network Definition
 Wireless network refers to any type of computer
network that is not connected by cables of any kind.

7. Types Of Wireless

8. • WPANS (Wireless Personal
Area Networks) :
 The two current technologies for wireless personal
area networks are Infra Red (IR) and Bluetooth.

9. 2.WLANS (Wireless Local
Area Networks) :
 Allow users in a local area, such as a university
campus or library, to form a network or gain access to
the internet.

10. 3.WMANS (Wireless Metropolitan
Area Networks):
 This technology allows the connection of multiple networks in a
metropolitan area such as different buildings in a city.

11. 4.WWANS (Wireless Wide
Area Networks):
 These types of networks can be maintained over large
areas, such as cities or countries, via multiple satellite
systems or antenna sites looked after by an ISP.

12. This table indicating the range that wireless data
networks can handle.
Meters Networks
0-10 PAN
0-100 LAN
0-10000 MAN

13. Wireless Access Point
 In computer networking, a wireless access point (WAP)
is a device that allows wireless devices to connect to a
wired network using Wi-Fi, Bluetooth or related
standards.

14. Wireless Router
 A wireless router is a device that performs the
functions of a router but also includes the functions of
a wireless access point and a network switch. It is
commonly used to provide access to the Internet or to
some other computer network.

15. Wireless Technology
 A technology, such as cell
phones, that uses radio waves to
transmit and receive data.
 It is used increasingly for data transmission.
 It is less costly then wire technology.

16. Wireless Communication
 Wireless communication refers to technology that
transmits data over distances without the use of
connecting wires.
 Basic types of wireless communication are
c) Radio transmission
d) Microwave transmission
e) Infrared waves
f) Light wave transmission

17. a) Radio Transmission
 It is the transmission of signals through free space by
modulation of electromagnetic waves.

18. Radio Transmission
Advantages
 Easily generated
 Travel long distance
 Omni-directionally
Problems
 Frequency dependency
 Low bandwidth

19. b) Microwave Transmission
 Microwave transmission refers to the technology
of transmitting information
 It the use of radio waves whose wavelengths are
conveniently measured in small numbers of centimeter.

20. Microwave Transmission
Advantages
 Widely used for long distance
 Inexpensive
Problems
 Don’t pass trough building walls
 Weather and frequency dependency

21. c) Infrared waves
 Widely used for short range communication
 Unable to pass through solid objects
 Used for indoor wireless LANS, not for outdoor

22. d) Light wave Transmission
 Unguided optical signals such as laser
 Connect two LANS in two buildings
 Unidirectional

23. The Benefits of Wireless
Technology
 Internet access is fast
 Increased efficiency
 Reduced costs
 Greater Speed
 Cut the Wires, Cut the Cost
 Eliminate the Wires, Simplify Installations
 No wires, Convenience, flexible.
 Wireless components have become quite affordable.
 Save substantial time and energy

24. QUESTIONS?