High throughput clone avoidance in wireless sensor networks

Electronics and Communication Engineering

It describes a high throughput clone avoidance protocol in densely deployed WSNs, which can guarantee successful clone detection and avoidance and maintain satisfactory lifetime network. Specifically, location information of sensors and randomly select witnesses located in a ring area to verify the legitimacy of sensors and to report detected clone attacks is exploited. The ring structure facilitates energy efficient data forwarding along the path towards the witnesses and the sink. The author proves that the proposed protocol can achieve 100 percent clone detection probability using ERCD protocol and clone avoidance using LAL protocol with trustful witnesses. The work can be further extended by studying the clone detection performance with untrustful witnesses and show that clone detection still approaches 98 percent when 10 percent of witnesses are compromised. In most existing clone detection protocols, the required buffer storage of sensors is usually dependent on the node density that is O (√n), while in proposed protocol, required buffer storage is independent of n but a function of hop length of the network radius h, i.e., O (h). Extensive simulations demonstrate that proposed protocol can achieve long network lifetime by effectively distributing the traffic load across the network. Clone is avoided by the determination of cluster head which is done using the localizability -aided localization (LAL).The throughput achieved in the existing system is of 46% while the throughput achieved in the proposed system is nearly about 92.5%. The existing system suffer from a delay of 160 nanoseconds whereas the proposed system has a delay of nearly 90 nanoseconds.

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