(A) Sleeping service provider (B) proxy server (C) overhearing node. Energy Usage for Completing the Active and Passive Proxy Delegation Protocols In this optimized version, the link layer address of the PS is generated from the last 8В bytes of the IPv6 address, present in the AAAA RR of the _sleep-proxy service description.ДЇigure 4.10. 4.4), we also implement an optimized version of the active proxy delegation protocol ( ap-hole), where the neighbor discovery stage is skipped. To verify the impact of the neighbor discovery protocol (Step 2 of the active proxy delegation protocol from Fig. We compare the performance of the active ( ap) and passive proxy ( pp) delegation protocol. This should be enough to capture any retransmissions of unicast frames by the CSMA/CA protocol.

Finally, the time-out of the entire step 3 is set at 2В s.

The repetition of step 2 of the active proxy delegation protocol is dictated by the neighbor discovery protocol, and the time-out is fixed at 10В s. The time-out for completion of step 1 from the active proxy delegation protocol and the entire passive proxy delegation protocol is set at five times the RDC wake-up interval. Therefore, we implement repetitions of individual stages of the delegation protocols based on the expiry of fixed time-outs. We use it to show the impact of the protocols to nodes in the vicinity.Дue to packet loss, the proxy delegation may not succeed in its first iteration. The dummy node does not participate in the proxy delegation protocol, but it overhears all traffic in the network. After the delegation finishes, the SSP turns off its radio, and the simulation is stopped. At second 7, the SSP starts delegating the service description to the PS using one of the previously described protocols. At second 5, the SSP advertises its service. The simulation starts with all nodes being online. All charts show the mean values of 1000 runs, and the error bars correspond to the 95% confidence interval of the mean. All nodes are within the same broadcast domain.ДЇor radio propagation, we use a constant loss rate model, with varying packet delivery ratio between 80% and 100%, at 2% increments.

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