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The Optimum use of energy is one of the significant needs in wireless sensor networks, because sensor devices would usually use the battery power. In this article, we give the suggested routing algorithm (BSDCH) with determining an optimum routine due to the energy use and the number of passed hobs. To transfer date from nodes’ sensor to BS (Base Station), data sending has been utilized in chains. In BSDCH algorithm, the nodes’ space is divided into several regions. In this article, each part is called a cluster. In each cluster, a node which is the best due to energy and distance comparison with other cluster nodes it is continuously selected with a given Formula (4) which is called main CH (Cluster Head) and forms a chain in that cluster and in each node cluster, it is selected by Formula (5) as secondary CH with the least distance and the best situation to BS and main CH. the secondary CH task is to receive data from the main CH and send data to the BS. As far as the main cluster head would waste too much energy to send data to BS, so to send data through secondary CH, we can keep main CH energy for more time. In the time of sending data from nodes to main CH, a multi chain is utilized. In the time of making nodes’ chain, nods are connected straight into its main CH radius and other nodes are connected in their sending radius which would have the least distance to main CH. Finally, also, BSDCH has been compared with PEGASIS [1] and PDCH [2]. The simulation results are shown which are indicator of a better BSDCH performance.<o:p></o:p> </p

BSDCH: New Chain Routing Protocol with Best Selection Double Cluster Head in Wireless Sensor Networks