Wireless Mesh Network
With the PulsAR radios you can deploy a Wireless Mesh Network in a "tree topology"
where any radio in the
mesh network can serve as an access point to other radios.
Wireless Mesh Network - Tree Topology
This wireless mesh network gives you
many advantages including:
- Extended geographic coverage.
- Easy network
expansion: adding a new node to an existing network only requires
line-of-sight to another node already in the network. And the new node
now provides coverage for future nodes further downstream.
Links: use a directional antenna to reach a far away parent. The
radios come with a dual antenna port that lets you deploy a second
antenna (typically an omni) to provide access to downstream nodes.
routing: All LANs get bridged together by the radio network. The
radios autonomously route your packets to the correct destination using
the minimum number of hops.
- Roaming: combine the tree
topology with our roaming feature to allow radios to change their
access points if the link to the parent drops or is impaired.
In the wireless mesh tree topology you have three node types: one root node and multiple branch and leaf nodes.
The root node performs a similar function to the hub in a
point-to-multipoint topology and can have up to 32 direct links to
remote sites. You can configure each radio at the remote sites as
either a leaf or a branch. A branch node, besides having a link to a
parent (root or another branch), also operates as an access point for
up to 32 additional remote nodes (children). Each of those nodes can
again be configured as either a leaf or a branch. There is no limit to
the number of levels in the tree. At any time you can upgrade a leaf node to become a branch.
A branch node has two independent RF configurations, one for the
link with the parent, the other for the links with its children. You
can set the link with the parent to use antenna A, and the link with
the children to use antenna B. This allows you to deploy a directional
antenna pointing at the parent node, while using an omni-directional or
sectorial antenna for the links with the multiple children. This is
not mandatory, you can configure a branch radio to use a single antenna
if you wish.
The Afar Wireless Mesh Network has the following features:
- There is no limit in the number of levels on the tree.
association of new remote radios: just configure a new remote to
receive on the transmit channel of the desired parent and it will
automatically associate to the network (you can use the “network-id”
feature to prevent unauthorized radios from attaching).
bridging algorithm: the radios automatically learn the addresses of
your equipment attached on any of the LANs and route the packets using
the minimal number of hops to reach their destination.
network: If a parent node goes down a branch continues to operate and
pass data between its children. Once the parent recovers the branch
automatically reattaches to the rest of the network. Or with roaming enabled the branch may attach to a different parent.
antenna root mode: You have the option of running the root with
two antennas. This may be useful if your remotes are grouped
geographically such that you can use two directional or sectorial
antennas to cover each group.