Performance of multihop CSMA unicast under intermittent interference

We study the effect of Wi-Fi or other forms of interference on unicast multihop 802.15.4 traffc in a sensor network, based on a layered state-driven Markov chain. The probability of a successful transmission attempt is treated as a conditional probability that depends on the state, that is, on the previous experience that the packet had with the presence of harmful interference. This allows us to evaluate end-to-end success probabilities.