Underwater sensor networks (UWSNs) are vulnerable to jamming attacks. Especially, reactive jamming which emerged as a greatest security threat to UWSNs. Reactive jammer are difficult to be removed, defended and identified. Since reactive jammer can control and regulate (i.e., the duration of the jam signal) the probability of jamming for maintaining high vulnerability with low detection probability. The existing model are generally designed considering terrestrial wireless sensor networks (TWSNs). Further, these models are limited in their ability to detect jamming correctly, distinguish between the corrupted and uncorrupted parts of a packet, and be adaptive with the dynamic environment. Cooperative jamming model has presented in recent times to utilize resource efficiently. However, very limited work is carried out using cooperative jamming detection. For overcoming research challenges, this work present Maximize Resource Utilization based Channel Access (MRUCA). The MRUCA uses cross layer design for mitigating reactive jammer (i.e., MRUCA jointly optimizes the cooperative hopping probabilities and channel accessibility probabilities of authenticated sensor device). Along with channel, load capacity of authenticated sensor device is estimated to utilize (maximize) resource efficiently. Experiment outcome shows the proposed MRUCA model attain superior performance than state-of-art model in terms of packet transmission, BER and Detection rate.
Underwater wireless sensor networks (UWSNs) are used for monitoring costal area and military surveillance applications, for example tsunami prevention and target tracking etc. Jamming is considered to be a serious problem in UWSNs where the intruder affects the lifetime of sensor motes and impact the packet transmission performance. This paper consider that the jammer device has capability of reducing battery lifetime and preventing communication of trustworthy UWSN mote. Existing resource utilization model are not efficient considering presence of multiple jammers. For overcoming research issues this work present efficient resource allocation design for mitigating multiple jammers in UWSNs. The ERA model adopts cross layer design and can communicate in cooperative manner using direct and hop based communication that maximize resource utilization quality specifier. Experiment outcome shows the ERA achieves much better detection rate, resource utilization, packet drop, and energy efficiency performance compared with existing resource allocation methodologies considering presence of multiple jammer motes.
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