Throughput enhancement of wireless sensor network localization accuracy against jamming attacks

Abstract

Localization refers to locating the position or area in which the sensor or object to be tracked. Based on the localization, many applications are emerging in the wireless sensor network. Since the wireless sensor network is a shared medium, jamming attacks can be launched by adversary emitting the radio frequency signal. Therefore jamming attacks affect the localization process. Range based methods like received signal strength indication (RSSI) is affected a lot by physical jamming attacks. This paper proposes a solution based on modified multi frequency multi power antenna to provide robust and accurate localization technique.In this paper continuous, random and capture and replay jammers are be simulated to test the localization accuracy of the RSSI algorithm However the access point sends beacons in different frequencies and jammer cannot jam all the frequencies, sensor nodes will be able to receive beacons in spite of the existence of continuous and random jammer. The only problem now is with capture and replay jammer. So that this paper proposes a set of filters to eliminate the replayed beacons The simulation results showed a powerful and improvement in the localization accuracy against jamming attacks through detecting, filtering and eliminating the effect of these attacks.