Week 5 : Wired and Wireless Technology

This chapter will explain about network characteristics : topology,wired vs wireless, size or coverage area & architecture.

• wired network 

                     The video above shows how to connect network wired network at home.

• wireless network

 

The video tells the basic about connecting wireless network. 

There are four types of wireless networks, they are :- 

• wireless wide area networks (WWANs)
• wireless metropolitan area networks (WMANs)
• wireless local area networks (WLANs)
• wireless personal area networks (WPANs)

Different classification of wireless technologies. 

There are five types of wireless technology :

 1) Infra Red
 - do not use signal
- Infrared Data Association 
- not popular now

2) Bluetooth
- it is for wireless personal area networks 
- for a short range <10m
- connect devices such as mobile phones, laptops, printers, PCs and so on.

3) Wireless local area networks (WLANs), Wifi
-  based on the IEEE 802.11 standard.
- it has two radio frequency specifications (RF - direct sequence and frequency hopping spread spectrum) and one infrared (IR).
- use a point-to-point solution and point-to-multi-point solution.

4) Broadband wireless
- Speed up to 70Mbps, Range 30 miles.
- Broadband means 'having instantaneous bandwidth greater than around 1 MHz and supporting
  data rates greater than about 1.5 Mbit/s.



5)Wimax