I'm trying to understand sleep modes with regards to transmission and reception of data. A bit of background. This is for a university project where I intend to have a network of riverside water monitoring stations along the bank of a river. There would be a coordinator XBee3 connected to a microcontroller with an SD card reader, strung along the river would be for example 4 more XBee3s with sensors attached.
Having read the XBee3 manual I would be looking at extended sleep mode. For example the XBees would all wake up for 5 seconds every 30 minutes, take sensor readings, transmit then go to sleep. The manual says that each end device polls with the router/coordinator to see if it has data waiting for it, however I am wanting to send data TO the router/coordinator for storage, and several end devices are not in direct range of the router/coordinator, hence why I am using XBee3s. I assume I would set the router/coordinator as the destination in each end device and data would be transmitted through the other XBees that are in range through the mesh.
Also I would be keeping the router/coordinator active a little longer than end devices to ensure receipt of data.