Efficient physical layer security for LDR sensor networks
Résumé
Physical layer encryption is taking a significant importance in securing low data rate (LDR) sensor networks where they just work on physical and data link layers and there is not a full protocol stack implementations. In this paper, an efficient physical layer encryption is proposed. This security solution is valuable in terms of location privacy and attack prevention. Moreover, it does not have any influence on the encoder/decoder functionalities; furthermore, it achieves a kind of synchronization between the encryption/decryption operations. An identification mechanism is proposed in order to avoid the overhead power consumption at the receiver side.