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In this paper, a novel broadcast protocol is proposed for the receiver initiated transmission (RIT) media access control (MAC) protocol based wireless smart utility network (Wi-SUN) systems. The RIT protocol adopted by IEEE 802.15.4e achieves the low power consumption by switching the short wake-up state and the long sleep state, however, the protocol does not support broadcasting because terminals with the protocol are in the sleep state mostly. In the proposed protocol, terminals follow to adjusted periodical listening instructions that are unicasted, and the broadcasting frame transmitted at the periodical timing. Computer simulations are carried out to evaluate the required time for the layer 2 (L2) address resolution, as a typical case of the proposed broadcast protocol. The evaluation shows broadcasting is achieved by the proposed protocol and it is found that the average required time to finish the L2 address …