
401Intrusion Detection System Architecture for Wireless Sensor Network
Link layer attacks are collision, denial of sleep, and packet replay, etc. Here SMAC and time
division multiple access (TDMA) can be used to detect the anomaly. TDMA [18] is a digital trans-
mission process in which each cluster node will assign different time slots for different sensor nodes
in its region. During this slot, every sensor node has access to the radio frequency channel without
interference. If any attacker sends a packet using a source address of any node, e.g., A, but that slot
is not allocated to A, then LPA’s anomaly processor can easily detect that intr