Network coding anti-eavesdropping system for wireless sensor networks
Lei Wang · Journal of Tsinghua University(Science and Technology) · 2011
A network coding based anti-eavesdropping method was developed for wireless sensor networks.Linear network coding is used with multiple disjointed paths to the sink nodes with encoding of the original packets and re-encoding of received packets at the source node and intermediate nodes.The eavesdropper can recover the original packets only if it obtains enough encoded packets.Thus,the network privacy is enhanced.An analysis of the rate of coverage and the node transmission ability shows that the eavesdropper needs to enlarge its communication radius or cooperate with other eavesdroppers to increase its probability of successfully eavesdropping.