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The point-to-point wireless topology (also called P2P) is the simplest network architecture
you can set up in order to connect two locations using a wireless radio link. Point-to-point
wireless links can go from a short-range link connecting two locations just a few hundreds
meters apart to a long range point-to-point wireless link that connects two locations tens
of miles away from each other.
In a point to-point-wireless link, distance is affected by
the height of each Ethernet radio device, the frequency used, the power level, and
Point-to-point wireless links are usually deployed between two locations that are in clear line
of sight (LOS) with each other in other to maximise the performance of the wireless link.
For point-to-point wireless links working in the license free 2.4 GHz or 5.8
( license-free bands ) we suggest to deploy the link in clear ling of sight (LOS) because,
above 2.4 GHz, line of sight (LOS) operations provide a much more reliable wireless link.
Point to point wireless link at frequencies around 5875 MHz can work reliably in near
line of sight (NLOS) or in non line of sight conditions (NLOS point to point wireless links).
The Point-to-Multipoint topology (also called star topology or simply P2MP) is a common network
architecture for outdoor wireless networks to connect multiple locations to one single central location.
In a point-to-multipoint wireless Ethernet network, all remote locations do not communicate directly
with each other but have a single connection towards the center of the star network where one or more
base station is typically located.
Outdoor point-to-multipoint wireless solutions are very common both for wireless Internet service providers
(WISPs) and for outdoor video-surveillance systems. In a WISP network, subscribers are connected at the edge
of the network using a client device typically mounted on the roof of their house. One or more central base
stations are mounted on a high building, or on a mountaintop or on a water tower in line of sight with as many
client devices as possible.