What are the advantages and disadvantages of a Wireless LAN?

Wireless LANs have advantages and disadvantages when compared with
wired LANs. A wireless LAN will make it simple to add or move 
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workstations, and to install access points to provide connectivity in areas
where it is difficult to lay cable. Temporary or semi-permanent buildings
that are in range of an access point can be wirelessly connected to a LAN to
give these buildings connectivity. Where computer labs are used in students,
the computers (laptops) could be put on a mobile cart and wheeled from
classroom to classroom, providing they are in range of access points. Wired
network points would be needed for each of the access points.
A WLAN has some specific advantages:
 It is easier to add or move workstations
 It is easier to provide connectivity in areas where it is difficult to lay
cable
 Installation can be fast and easy and can eliminate the need to pull
cable through walls and ceilings
 Access to the network can be from anywhere in the school within
range of an access point
 Portable or semi-permanent buildings can be connected using a
wireless LAN
 Where laptops are used, the ‘computer suite’ can be moved from
classroom to classroom on mobile carts
 While the initial investment required for wireless LAN hardware can
be similar to the cost of wired LAN hardware, installation expenses
can be significantly lower
 Where a school is located on more than one site (such as on two sides
of a road), it is possible with directional antennae, to avoid digging
trenches under roads to connect the sites
 In historic buildings where traditional cabling would compromise the
façade, a wireless LAN can avoid drilling holes in walls
 Long-term cost benefits can be found in dynamic environments
requiring frequent moves and changes
 They allows the possibility of individual pupil allocation of wireless
devices that move around the school with the pupil.

 

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