WIRELESS TECHNOLOGIES

Research the different wireless technologies.Provide the following:

• 802.11

Description:

It is a family of wireless LAN(WLAN) specification developed by a working group at the Institute of Electrical and Electronic Engineers(IEEE).

Diagram:

Example:

-

• Infrared

Description:

A wireless technology that operates over a short range communication.

Diagram:

Example:

-Remote control

• Bluetooth

Description:

Bluetooth is a wireless technology for transferring data between two devices that are in close nearness  with each other.

Diagram:

Example:

-Printer

• 3G

Description:

A generation of wireless technology that transmits wireless data up to 2 megabits per second and makes integration of voice,data and video.

Diagram:

Example:

-Mobile phone

Identify the differences  between the various types of 802.11.

• 802.11b

-Maximum raw data rate of 11mbit/s

-High throughput

-Low cost

-Interference problem

• 802.11g

-Operates in the 2.4 GHz band

-Uses OFDM based transmission scheme

-Operates at the average bit rate of 22 Mbit/s or maximum 54 Mbit/s

-Its hardware are full back compatible with 802.11b hardware 

• 802.11n

-It is the improvement over previous 802.11 standard

-It has MIMO antennas

-Operates at the 2.4 GHz or less than 5GHz bands

-Data rates from 54Mbit/s to 600Mbit/s

References:

priyankpatel2811 (2014). Introduction Wireless Technology. [online] Slideshare.net. Available at: https://www.slideshare.net/priyankpatel2811/introduction-wireless-technology [Accessed 2 May 2018].

acharya (2014). wireless network IEEE 802.11. [online] Slideshare.net. Available at: https://www.slideshare.net/shreejanacharya/ieee80211-wireless-network [Accessed 2 May 2018].