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An Investigation on IEEE 802.15.4 MAC Layer Attacks

IEEE 802.15.4 has been established as a dominant MAC layer protocol for wireless sensor networks (WSNs). Recently the security concepts of sensor networks have quickly gained more significance because of two major factors: widening the range and variety of possible applications and increased implementation rate. Because the nodes are very resource-constrained, the attacks on these networks and detection of the attacks must carefully be considered. This paper dissects the known attacks on wireless sensor networks and also identifies two new attacks: PANId conflict attack, and Guaranteed Time Slot (GTS) attack taking as a basis the IEEE 802.15.4 MAC protocol for WSN. The attack evaluations are analyzed from the perspectives of the attacker and the network. A detection mechanism for PANId conflict attack is presented, and the simulation results for this attack implementation on ns2 are given. Keywords— IEEE 802.15.4 MAC, attack, wireless sensor networks, PANId conflict attack, GTS attack.