Point to Point connection
Wireless Point to Point bridges allow you to bridge Ethernet LANs between office buildings, factories, warehouses, and remote locations with minimal capital investment and no monthly leased-line costs.
Point to Point links are an excellent way to make high data transfer speeds between two nodes. This is an ideal way how to connect two offices. Also these types of wireless links are very useful if you need to create backbone link from some distant radio access point to your main Internet source. For creating such connections we recommend to use 5 GHz wireless bridges (as 2.4 GHz frequency is no more reliable due to interferences of other widely used devices). In case of NLOS (Non Line of Sight) we strongly recommend to use 900MHz devices.
Point to Multipoint connection
Point to Multipoint connections are the most usual way how wireless ISPs (WISPs) connect their customers. They put access point somewhere high in the tower above the city or on some high building and then point their client antennas to this access point. Nowadays it is better to use 5GHz (802.11a) instead of 2.4GHz. There is much more channels to choose from in 802.11a.
WDS (Wireless Distribution System) is the best way how to interconnect many access points and allow users to move around without getting disconnected from network.
Using this system you can cover large areas and allow users to move for large distances while still being on-line.
This system allows packets to pass from one wireless AP (Access Point) to another, just as if the APs were ports on a wired Ethernet switch.
APs must use the same standard (802.11a, 802.11b or 802.11g) and work on the same frequencies in order to connect to each other.
A wireless mesh network is a communications network made up of radio nodes in which there are at least two pathways of communication to each node. The coverage area of the radio nodes working as a single network becomes a mesh cloud. Access to this mesh cloud is dependent on the radio nodes working in harmony with each other to create a radio network. A mesh network is reliable and offers redundancy. When one node can no longer operate, all the rest can still communicate with each other, directly or through one or more intermediate nodes. Omnidirectional antennas are used in order to cover larger areas. Widely used by security companies in order to install surveillance cameras.