I would like to know the theoretical calculations for these ranges in WiFi 802.11. Since I am new to WiFi these are somewhat confusing. In case some one knows NetSim, how are these ranges implemented in the simulator as against the correct theory?
Transmission range is defined between a transmitter and (its) receiver
Carrier sense range is defined between two transmitters
Interference occurs at a receiver. Whether it leads to packet corruption is based on the SINR received. Hence the interference range would depend on (a) the distance between a receiver and its transmitter and (b) the distance between a receiver and another transmitter (that is transmitting to a different receiver and whose signals interfere at this receiver).
You can look at this paper where all this is explained through an example along with radio propagation calculations https://tetcos.com/wifi-white-papers.html
You can see https://tetcos.com/help/v13.2/Technology-Libraries/Internetworks.html#hidden_node_behaviour (takes a few seconds to load though) for an understanding of simulating the hidden node problem in NetSim.