27-08-2016, 03:14 PM
1450855195-CSEMobileComputingppt.zip (Size: 225.2 KB / Downloads: 7)
What Is Mobile Computing
What is computing?
Operation of computers (according to oxfords advance learner’s dictionary)
What is the mobile?
That someone /something can move or be moved easily and quickly from place to place
What is mobile computing?
Users with portable computers still have network connections while they move
Is using a digital camera “Mobile Computing”, or using an MP3 player or handheld computer (e.g. 3Com’s Palm Pilot or Compaq’s iPAQ 3660)?
Comparison to Wired Net.
Wired Networks
high bandwidth
low bandwidth variability
can listen on wire
high power machines
high resource machines
need physical access(security)
low delay
connected operation
Mobile Networks
low bandwidth
high bandwidth variability
hidden terminal problem
low power machines
low resource machines
need proximity
higher delay
disconnected operation