A system data sharing protocol of mobile WSN named synchronous dynamic multihop data sharing protocol (S-DMDS) is\r\npresented for automated guided vehicle (AGV) system. It is a cross-layer protocol designed from route layer to MAC layer. By\r\nadopting a concept of system data sharing, it is possible to make each node exchange the data timely with all the other nodes. It\r\nis also a topology-agnostic protocol which has no knowledge of neighbors, routes, or next hops. From the results of the 16-nodes\r\nsimulation, S-DMDS protocol is proved to be efficient exchange data timely between the devices of AGV system in mobile multihop\r\nsituation.Moreover, it also shows that S-DMDS significantly outperforms NST-AODV with investing about 41.6% system sharing\r\ndelay as well as 80% RAM consumption. At last, 5-node experiment indicates that S-DMDS can work well in real environment.
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