Transmission of the acknowledgement frame after a packet reception is optional in the IEEE 802.15.4 standard. Considering a set of sensor nodes, each of which has a packet to transmit at the beginning of an active period, we provide an analysis that yields the packet loss statistics of the non-acknowledgement mode of the standard. The analysis is based on a non-stationary Markov chain model and its accuracy is verified by ns-2 simulations
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Shu et al. (2007) studied this question.
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