• Dr. Mayank Kumar

Mobile Ad Hoc Networks (MANETs) are inherently vulnerable to a variety of security threats due to their decentralized and dynamic nature. Among these, Byzantine attacks are particularly disruptive, where malicious nodes-either individually or in groups-compromise the routing path between the source and destination, leading to significant performance degradation. To address this issue, this paper introduces a novel mitigation strategy based on the Cohen Kappa Reliability Coefficient (CKRCM). The approach involves continuous monitoring of intermediate nodes by their neighboring nodes using timestamp-based observations. If an acknowledgment is not received within a specified timeframe, the corresponding node is flagged as potentially compromised. The method further assesses node trustworthiness by calculating individual trust and reliability metrics. Experimental results demonstrate that the proposed CKRCM mechanism achieves superior performance compared to existing solutions, particularly in terms of throughput, packet delivery ratio (PDR), and packet loss ratio (PLR).

MANET, Byzantine Attack, Cohen Kappa Reliability Coefficient, Trust Factor, Reliability

"Intelligent and Secure Routing Protocols for Resilient Mobile Ad Hoc Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 2, page no.245-248, February-2021, Available :http://www.jetir.org/papers/JETIR2102330.pdf

"Intelligent and Secure Routing Protocols for Resilient Mobile Ad Hoc Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 2, page no. pp245-248, February-2021, Available at : http://www.jetir.org/papers/JETIR2102330.pdf