(With the development of positioning technology, routing protocols based on geographic location have received extensive attention and research. The characteristics of the geographic location routing protocol GPSR in wireless sensor networks are analyzed, and the greedy forwarding and beacon sending mechanism in the GPSR protocol are discussed in detail, the local optimization problem when the routing is empty, the right-hand rule and the plane topology used in distance forwarding The structure of the graph and the realization of distance forwarding)
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