Connecting A Network Part 3

In this subdivision chapter, we will learn type of wireless technology. 
There are 5 type of wireless technology namely:

  • Infra Red 
  • Wireless local area networks (WLANs) , WiFi 
  • Broadband wireless. 
  • Bluetooth, 
  • WiMax
  • Infra Red
Method of transferring data without the use of wires. A common example of aninfrared (Ir) device is a TV remote. However, infrared is also used with computersand devices like a cordless keyboard or mouse. The picture is an example of the Nintendo Wii remote and an example of an infrared device.

  • Wireless local area networks (WLANs) , WiFi 
A wireless LAN (or WLAN, for wireless local area network, sometimes referred to as LAWN, for local area wireless network) is one in which a mobile user can connect to a local area network (LAN) through a wireless (radio) connection. The IEEE 802.11 group of standards specify the technologies for wireless LANs.

Figure 1: WLAN connection with other devices.

  • Broadband wireless. 
Wireless broadband is technology that provides high-speed wireless Internet access or computer networking access over a wide area.
Figure 2: Connection of wireless broaband

  • WiMax
WiMAX (Worldwide Interoerability for Microwave Access) is a wireless industry coalition dedicated to the advancement of IEEE 802.16 standards for broadband wireless access (BWA) networks.
Aparts, WiMAX supports mobile, nomadic and fixed wireless applications. A mobile user, in this context, is someone in transit, such as a commuter on a train. A nomadic user is one that connects on a portable device but does so only while stationary for example, connecting to an office network from a hotel room and then again from a coffee shop. Fixed wireless typically refers to wireless connectivity among non-mobile devices in homes or businesses.

Figure 3 : Type of WiMaxs





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