Wireless networking in a business environment is notoriously unreliable when delivering data to the desktops. The main reasons for this are the overcrowding of the bandwidths used by wireless protocols, interference from competing networks and devices nearby, construction of buildings in the working environment, and poor positioning of wireless network points (WAPs).
In our experience the only way to achieve satisfactory results in desktop wireless networking is to deploy a high number of WAPs throughout the target area. As each WAP needs to connect to a structured cabling infrastructure this often defeats the object of the exercise ie not to have a cabling infrastructure.
However there are sophisticated wireless networking systems that address these issues by use of monitoring software, commonly used in university campuses, airports and other large areas where wireless access is required by a large number of users. Such systems are expensive to install and very costly to run and fall outside the economic reach of most business users.
Datacat have on the other hand deployed wireless technology with great effect to establish links in the backbone for example when connecting two buildings where it ha snot been possible to run copper or fibre optic cable.
There are two technologies that can be used: radio or laser where there is line of site between the buildings.
The radio system we have deployed works on 5GHz technology that can't be detected by standard wireless access cards They are integrated fully functioning radios. That means these units can be configured as an Access Point, a Point to Point bridge,or a Client Adapter (CPE). They are equipped with dual Ethernet ports which allows you to daisy-chain radios at your installation sites. 
Laser systems transmit and receive data between externally mounted units where there is line of sight between buildings, at speeds of 1000mbps. Combining higher bandwidth with excellent reliability, laser LAN links offer a cost-effective alternative to a fibre optic link between buildings.
In both cases management of the systems is accessed via web interface, which makes them especially attractive on sites which are supported remotely.
