January 2008
Intermediate to advanced
336 pages
9h 43m
English
An indoor access point uses either a nondirectional antenna that radiates equal amounts of energy in all directions from the middle of the intended coverage area, or a directional antenna with a wide aperture angle located at one edge (or a corner) of the coverage area. An access point that provides wireless service to any location within a designated area (such as an office or a house) is a point-to-multipoint service; it can exchange data with many network clients at the same time.
A point-to-point link has a different objective: It moves as many of the radiated signals as possible between two fixed locations. Radio signals move across the link in both directions, so each access point, router, or network ...