• VEERAMUTHU P
• Makkineni manoj

Abstract : The most of the related works preclude the ambiguity of the environment by assuming that malicious sinking is the only source of packet loss, so that there is no need to account for the impact of link errors. On the other hand, for the small number of works that differentiate between link errors and malicious packet drops, their detection algorithms usually require the number of maliciously-dropped packets to be significantly higher than link errors, in order to achieve an acceptable detection accuracy. Our algorithm also provides a truthful and publicly verifiable decision statistics as a proof to support the detection decision. The high detection accuracy is achieved by exploiting the correlations between the positions of lost packets, as calculated from the auto-correlation function of the packet-loss bitmap a bitmap describing the lost or received status of each packet in a sequence of consecutive packet transmissions. The basic idea behind this method is that even though malicious dropping may result in a packet loss rate that is comparable to normal channel losses, the stochastic processes that characterize the two phenomena exhibit different correlation structures. Therefore, by detecting the correlations between lost packets, one can decide whether the packet loss is purely due to regular link errors, or is a combined effect of link error and malicious drop.

packet dropping, auto correlation function, secure routing, attack detection, homomorphic linear signature, auditing

"FINDING OF PACKET SINKING SPASMS IN WIRELESS AD HOC NETWORKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 4, page no.1067-1072, April-2018, Available :http://www.jetir.org/papers/JETIR1804214.pdf

"FINDING OF PACKET SINKING SPASMS IN WIRELESS AD HOC NETWORKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp1067-1072, April-2018, Available at : http://www.jetir.org/papers/JETIR1804214.pdf