The most common fields of application are :
• in the personal environment, the deployment of a small network, mainly intended to share an internet connection broadband.
• in-house, to allow easy connection of mobile workstations (laptop) to the network or a part of the network of the company.
• in rural areas, to distribute to the public internet access most often obtained by a satellite solution.
• in public places \high-tech\, to provide customers with portable digital access.
Before the multitude of solutions proposed, it is probably necessary to make the point on this
technology has certainly advantages, but is not free of disadvantages.
We will try to make the point on Wi - Fi, without going too much into the details of the Protocol in
levels 1 and 2, (the physical layers and data binding, which are of the order of the manipulation of carrier waves), or on other layers, since from the level 3 is everything
in the same way on a wired network, but rather on the topology and security constraints that must absolutely be account.