For example, what significance does an average power of 25 nW have compared to 31 nW, with respect to the IoT applications, eg: if it is to extend battery life, by how much? and there are particular references can rely on?
can by considering the factor Power consumption on the sensor node, the application of sleep mode on the node can increase the sensor node's lifetime on complex IoT networks, so that when averaged the total use of Power (mW) on the IoT network is determined by the number of nodes connected, the greater the number of nodes, the higher the average Power value on the IoT network, now what we are talking about is how to reduce the power usage on the sensor node when sending sensor data, this is also influenced by the type of radiofrequency used, LoRa, ZigBee, etc, LoRa also has a different Power transmit. while IoT talks about Quality of Service (QoS) and Budget Link or Receive Sensitivity Gateway from nodes and analysis of uplink and downlink at dBm parameters.
so the amount of Power Consumption depends on the type of device used to make the sensor node.
Thank you Puput for your valuable reply. In your answer, you have clearly identified the factors of power consumption. But you focused on the wireless method when sending sensor data, what is about wire method, i.e. is there a link budget for the wired network as well?