Optimal and secure pattern comparison based data aggregation protocol for WSN
具有优化和安全特征的基于模式码比较的WSN数据融合协议

Data aggregation and its security are the key for wireless sensor network to achieve efficient and secure communication. This paper presents an optimal and secure pattern comparison_based data aggregation protocol for WSN. In this protocol,it can ensure the data confidentiality based on pattern codes with no physical meaning, and sensors perform data aggregation by using pattern comparison algorithm; it proposes an optimal way to choose sending nodes. During aggregating, the protocol can ensure the security of aggregation process and result by two-hop-delay authentication. Simulation results show that the protocol can further improve the aggregation rate to prolong the lifetime of network, and ensure security and validity of the aggregation.