Described herein are techniques to enable nodes to determine whether the Border Router (BR) is alive. These techniques leverage existing traffic, thereby avoiding wasting bandwidth resources such as periodic asynchronous messages to maintain Wireless Mesh Network (WMN) connectivity.
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Zhang, Lele; Li, Chuanwei; She, Huimin; and Wang, Feiliang, "HEARTBEAT MECHANISM FOR SYNCHRONIZATION IN LOW-POWER AND LOSSY NETWORKS", Technical Disclosure Commons, (June 19, 2019)