Research on the path selection of mobile sink in dynamic sensor networks

put forward an agreement of safety range query that possesses privacy and completeness protection aiming at low-energy and high-privacy protection required by range query in two-level wireless sensor networks: SPQ(Secure probabilistic range query). SPQ consists of technologies like data encryption, prefix member verification, probability neighbor validation and query transformation process separation and can ensure to complete range query in the circumstance of not disclosing privacy. Analysis and simulation results show: compared with other safety agreement, SPQ possesses lower energy consumption on the condition of safety guarantee of range query.