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We further examine control and computation overhead. Broadcast-driven schemes can exhibit prohibitive overhead—often exceeding 80% due to broadcast storms—while UW-LFRR incurs negligible overhead that is virtually identical to the HL-OLSR baseline, because signaling is embedded in data headers and state is restricted to the failure locality. In terms of computation, FCP can incur significantly higher cost because it triggers recomputation at each informed node along the route, whereas UW-LFRR computes and installs the detour upon the first packet and allows subsequent packets to bypass the failure without further computation. |