The air-time is no longer common to all nodes but the notion of a link, the sender-receiver pair, and the topology of the network are playing a major role in the throughput analysis.
The iterative method proposed in this paper is illustrated by examples for which the saturation throughput of all nodes is evaluated in an IEEE802.11b network with RTS/CTS enabled access.
The result fits closely the saturation throughput of an event-driven simulation with the same settings.