Abstract
Background: The jammer in a wireless sensor network is located and tracked with open access and shared nature of the wireless medium. The existing algorithms mainly track the stationary jammer. Mobile jammer often moves from one place to another becoming difficult. Mobile jammer location tracker algorithm is proposed to find the location of a mobile jammer with four steps selection i.e., initial examining node, determination of supporting node, trilateration localization and examining group handover.
Objective: In this research paper an algorithm is proposed for finding the location of mobile jammer in wireless sensor network. Finding location faces a huge difficulty due to non-supportive working between the multi hop wireless sensor network and jammer. The existing algorithms are used to find the location of stationary jammers only. Mobile jammers frequently change their position from time to time. Therefore jamming increases between the node to node communications in the multi hop wireless sensor network.
Methods: The multi hop wireless sensor network is deployed with n number of stationary nodes in a particular area. The omni directional antenna is fitted with those stationary nodes and the transmission powers of the nodes are also constant. The direction-finding table is maintained and keep on updating for an interval of each node. The position of the nodes is tracked with the GPS devices or by existing location finding algorithm. The nodes in the multi hop wireless sensor network are installed in A*A square area uniformly and randomly. The transmitting node is tp node. The received signal to noise ratio is threshold STNR. Neighbor list records the neighbor node of the multi hop wireless sensor networks.
Results and Conclusion: The proposed idea of localization and tracking system of mobile jammer is estimated efficiently by the multi hop wireless sensor network with the simulator MATLAB. The nodes in multi hop wireless sensor network are installed in A*A area square uniformly and randomly.
Keywords: Stationary jammer, mobile jammer, location, tracking, wireless sensor networks, routing, flooding.
Graphical Abstract
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