Abstract
An ad hoc network is a multi-hop wireless network of mobile nodes without fixed infrastructure. Its limited bandwidth and frequently changing topology require that its protocol should be robust, simple and energy conserving. In this paper, we propose a new ad hoc multicast protocol based on Passive Data Acknowledgement (PDAODMRP). PDAODMRP has the following contributions: (1) it knows the status of its downstream forwarding nodes by route information collected from data packets instead of BEACON signal of MAC layer, and reduces the waste of wireless bandwidth created by the BEACON signal; (2) it adopts a new route information collection from data packets to reduce the CPU usage of data route information collection; and (3) it adopts a dynamic local route maintenance to enforce its local route maintenance. From simulation results, it can be seen that PDAODMRP has low control overhead and low data delivery delay.
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