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Abstract

The Internet of Things (IoT) has cultivated a promising environment, pivotal across diverse sectors via MANET protocols within the w.w.w. This technology significantly contributes to advanced services for mobile devices in the MANET-IoT domain. However, MANET encounters security challenges, notably malicious attacks as a prime concern. To counter these threats, preventive measures like subjective-context evaluation and node protection are employed, ensuring data packet integrity before delivery. This study aims to enhance the performance of a novel reactive protocol, integrated with a fuzzy system within the MANET-IoT environment. The methodology is implemented in two directions: 1) Establishing a secure network founded on trust parameters and shortest path selection. 2) Incorporating an integrated fuzzy system into an improved reactive routing protocol within the MANET environment. Subjective context ensures a secure milieu, evaluating nodes before packet delivery based on trust and shortest path. The fuzzy system's rules determine the network's probability distribution, contingent upon trust and the number of hop counts. The proposed routing protocol is evaluated both pre-and postattacks during packet transmission. Results demonstrate its superiority in packet transmission over the original protocol. Three scenarios evaluate packet delivery fraction (PDF), end-to-end delay (E2E), and normalized routing load (NRL). FS-AODV's percentages were 0.9873% against AODV's 1.9871% without drop) and 0.8419% with a drop for PDF. FS-AODV's percentages stood at 0.0006% against AODV's 0.0007% without a drop and 0.0005% with a drop for E2E. In contrast, FS-AODV's percentage was 0.058%, AODV at 0.0127% without a drop, and 0.066% with a drop for NRL.

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