Lecture 7: WLAN Design Models and frames types

Wireless Networks
Lecture 7: WLAN Design Models and frames types

Site-to-Site Connections:
When using WLAN technology to form site to site links, you will either create point-to- point (PtP) or point-to-multipoint (PtMP) links.

Point-to-Point (PtP):
A PtP WLAN connection is a dedicated connection between two wireless devices. These two devices are usually bridges that allow for the bridging of two otherwise disconnected LANs.
These wireless connections allow for the creation of large-scale campus networks and may even be used to create metropolitan networks that span cities. They provide the benefit of connecting disconnected LANs over some distance without the need for leased lines or running cable when the connection is created within a large campus or otherwise owned area .
These PtP connections will use semi-directional or highly directional antennas to form the connection. These antennas do focus the signal mostly in a desired direction so that more amplitude is available in that desired direction.

Point-to-Multipoint (PtMP):
A PtMP wireless link is created when more
than one link is made into a central link location.
An omni- or semi-directional antenna is usually used at the central location, and semi-directional or highly directional antennas are used at the other locations.