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The differences are certain to be huge. There is quite a cost savings
that could be accomplished as well as a dramatic productivity increase
if wireless is considered from the earliest planning stages. Physical
placement of the access points is probably the key factor of a
successful layout. Often times the wireless network equipment is placed
on or above the ceiling to provide the clearest signal. This can be the
best strategy to combat the attenuation caused by steel beams and file
cabinets. A steel cabinet filled with paper can be a wireless laptop's
worst enemy! Secondly, understanding the proximity relationship of
conference/meeting spaces to individual workspaces is another goal.
Access points tend to deliver the best service to devices with the
strongest signal, so the sudden confluence of several laptops in a room
can cause "network brownouts" for some unwitting users at nearby desks. (Answered by Dave Juitt.) This was first published in May 2002