Abstract: For the problem of multiple base stations in wireless sensor networks, k-Anycast technology based on routing protocols was suggested, the maximum life of wireless network based on multiple base stations was researched. First,based on all energy consumption and data traffic conservation, a combination of the nonlinear planning model was established. I3acause the mathematical models are the NP-hard problem,they were further changed into mixed integer nonlinear programming model to solve all the base links to link the propitiation for the routing paths. According to the link life, assigned data flow to reach balance energy consumption purposes and to maximize the life span. I}he simulation models indicate that the communication could prolong the life cycle.

Key words: Wireless sensor networks,Anycast,Multiple sinks