Active defense strategy against jamming attack in wireless sensor networks

Wireless Sensor Network WSN been utilized increasingly nowadays due to its benefits and its ability of collecting data from reachable or unreachable fields also if fields fixed or movable. Progressive developments in WSN techniques adds efficiency, reliability and better power management but it still vulnerable and sensitive to some kinds security threats. The most effective threat to WSN is DOS attacks which is detectable but unpreventable yet. An authentication defense approach against DOS attack with additional Jamming attack that prevents transferring data between attacked node in a cluster and cluster head node is considered as a base to develop an algorithm with ability of bypassing attacked path via alternative safe one under control of cluster head to mitigate the False Node Excluding DOS due to jamming attack. Both original and enhanced methods implemented using MATLAB and tested by comparing both results and behavior with arbitrary study case. Enhanced algorithm shows good response in mitigating FNEDOS attack.