A Secure Query Protocol for Multi-layer Wireless Sensor Networks Based on Internet of Things

Abstract

This paper puts forward a secure query protocol for wide-range multi-layer WSNs based on the Internet of Things (IoT), which protects data transmission from three aspects: network security, attack mode and privacy protection. Drawing the merits from the Range Doppler (RD) algorithm and Z-O encoding, our protocol only needs to compare the perceptual data nodes with the radius of the query interval once, which greatly improves the query efficiency. The embedded Z-O codes can transform the comparison into solving the intersection of the two sets. In addition, the hash-based message authentication code (HMAC) was introduced to achieve unidirectional protection of the original data. The simulation results show that our protocol outperforms the traditional protocols in query time, coding length and bucket mechanism, and enjoys high power efficiency, low storage cost and good query accuracy.