•A wireless LAN or WLAN is a wireless local
area network that uses radio waves as its carrier.
•The last link with the users is wireless, to
give a network connection to all users in a building or campus.
•The backbone network usually uses cables
Why does we use
Wireless?
•Freedom from the boundaries of space
•Instant access to data and applications
•Spontaneous networking
•Embedded communication in devices
So, what’s the facelities of
using wireless internet?
•High communications, device cost
•Long latency period
•Low/uncertain bandwidth
•Unreliable channels
•Roaming/handoff issues
•Unique devices
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