Friday, 4 May 2012

2nd May 2012

Time flies~
It's already the 11th week of this semester~ :DDD
unlike the days like usual, Dr. Dayang managed to teach us two topics in todays class~
Wow!!!it's sure very fast :)))
look!!'m fast!!!!XDDD

The topic for today were Wireless Technology and Unbounded Media. Let's have a brief look on it <3<3

Wireless technology is generally used for mobile IT equipment. It encompasses cellular telephones, personal digital assistants (PDA's), and wireless networking.

Wireless Communication involves:

  •       radio frequency communication.
  •        microwave communication, for example long-range line-of-sight via highly directional antennas, or short-range communication.
  •        infrared (IR) short-range communication, for example from remote controls or via IRDA.

Types of Wireless Network:

Wireless Wide Area Network(WWANs)

Wireless Metropolitan Area Network(WMANs)

Wireless Personal Area Network(WPANs)

Wireless Local Area Network(WLANs)
         Besides that, we were also get to know that broadband wireless access is a technology aimed at providing high-speed wireless access over a wide area from devices such as personal computers to data networks. According to the 802.16-2004 standard, broadband means 'having instantaneous bandwidth greater than around 1 MHz and supporting data rates greater than about 1.5 Mbit/s'.

Moreover, Media transport electromagnetic wave without physical conductor. Signals are broadcasting through air or water and therefore available to anyone who has a device capable of receiving them.

There are two types of antennas and they are:
Parabolic Dish Antenna
Horn Antenna

 Hereby, I would like to share the history of solar stirling plant technology (Parabolic Dish)~

love, Alison

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