cnReach employs adaptive modulation to further optimize network performance and make the most efficient use of the available spectrum. Adaptive modulation provides each radio the ability to transmit in the highest speed that the network conditions allow.
This serves two purposes in maximizing efficiency. Of course data moves faster on the given transmission but that radio also gets ‘on and off the air’ faster making more time for other radios to transmit.
With cnReach, in the uplink direction (from endpoint back towards the access point), each endpoint can have four different speeds available (in this case a speed is a combination of modulation and channel size).
In the downlink direction (from access point out to the endpoint), a single modulation is selected to ensure that the messages are able to be decoded by the furthest away end point.
See the example below: