Abstract
In this paper, a multipoint relay with energy awareness (EAMPR) is proposed for a system data-sharing protocol, abbreviated as EAMPR-SDS. It adopts a system datasharing concept which combines broadcasting routing with data fusion so that data exchange between wireless sensor nodes can be easily realized in the real world. Owing to the energy constraint of WSN, the proposed protocol employs EA-MPR to improve the transmission efficiency and extend network lifetime. Unlike some broadcasting optimizing mechanism such as self-pruning, it assigns a sending node to decide which of its neighbors should forward the shared data on the basis of the neighbors' rest energy as well as the neighbor information. Therefore, instead of all the nodes in the network, only a subset of nodes needs to forward the shared data while still guaranteeing complete network connectivity. The simulation results prove that in comparison with the existing system data-sharing protocol and self-pruning, EAMPR-SDS can significantly reduce the redundant broadcasting and its corresponding power consumption.
