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

摘要

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.%数据融合及其安全性是无线传感器网络(wireless sensor network,WSN)实现高效、安全通信的关键.提出了一种具有优化和安全特征的模式码比较无线传感器网络数据融合协议,在该协议中,基于非物理意义的模式码保证了数据的机密性,传感节点利用模式比较算法实现数据融合,结合一种优化的发送节点选择机制,在进行数据融合时,利用两跳延迟认证保证融合过程和结果的安全性.仿真结果表明,该协议不仅改善了数据融合度,有效延长了网络寿命,而且保证了融合的安全和有效性.