Opportunistic Networks are delay tolerant self-organized networks with sparse nodes

where the message propagation depends on the cooperation of nodes to fulfill a store-carry-process-and-forward fashion by leveraging the mobility of nodes

because there does not exist a complete path from the source to the destination in the most time.To achieve the communication of nodes in mutually disjoint clusters

we propose a Cluster Movement Model with Threshold (CMMT) and routing algorithm (CBSW)

which is Cooperative Binary Spray and Wait routing algorithm based on the Ferry nodes and cluster nodes cooperation.This routing algorithm reduces of the redundancy of communication and store the cost

as well as if the destination or Ferry nodes are not found in the spraying phase

nodes carrying a message copy will forward the message only to its destination in the Waiting phase nodes etc.Simulation results demonstrate the effectiveness of the proposed CBSW protocol in terms of high delivery ratio

low overhead and small average delay.