Abstract: Traditional routing protocols for mobile sinks in wireless sensor networks,should broadcast repeatedly their current location information to all sensor nodes while sinks are moving,but this process consumes a large amount of energy．For the problem above,an anycast routing protocol for mobile sinks in wireless sensor networks (ARPMS) based on predictive strategy was proposed．In ARPMS,sinks spread their moving information only when sinks change their moving direction or speed,by those moving information,sensor nodes could calculate(predict) sinks’ current and future location and select the sink with highest energy efficiency as the anycast objective．Because sinks don’t spread their moving information at all times,ARPMS saves much energy cost． Simulation experiments results show that compared with ALURP protocol,the performance of ARPMS is better in term of energy efficiency (223%～462%).

Key words: Mobile sinks,Wireless sensor networks,Anycast,Routing protocol,Predictive strategy