Techniques are described herein for composing multicast retransmissions harmoniously by prioritizing transmission of new messages and regulating retransmission of old messages. Only the same multicast messages are forwarded simultaneously such that loss due to collision can be significantly reduced. By measuring the intervals of new messages and counting the duplicates, retransmissions are reasonably curbed with awareness of input rate and medium usage. This prevents the “domino effect” on a crowded channel when loss occurs. Moreover, self-silence mechanisms allow regular nodes to release channel resources for critical forwarders. Multicast retransmission is provided with guaranteed delivery rate, which is imperative for firmware upgrading in Low-Power and Lossy Networks (LLNs).
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Chen, Charlie; Yang, Li; Li, Chuanwei; and Wang, Feiliang, "HARMONIOUS MULTICAST RETRANSMISSION FOR LOW-POWER AND LOSSY NETWORKS FIRMWARE UPGRADING", Technical Disclosure Commons, (May 10, 2018)