A secure routing and malicious node detection in mobile Ad hoc network using trust value evaluation with improved XGBoost mechanism

Mobile ad hoc networks (MANETs) are beneficial in a wide range of sectors because of their rapid network creation capabilities. If mobile nodes collaborate and have mutual trust, the network can function properly. Routing becomes more difficult, and vulnerabilities are exposed more quickly as a result of flexible network features and frequent relationship flaws induced by node movement. This paper proposes a method for evaluating trust nodes using direct trust values, indirect trust values, and comprehensive trust values. Then, evaluating the trust value, the network's malicious and non-malicious nodes are identified using the Improved Extreme Gradient Boosting (XGBoost) algorithm. From the detected malicious nodes, the cluster head is chosen to ensure effective data transmission. Finally, the optimal routes are chosen using a novel Enhanced Cat Swarm-assisted Optimized Link State Routing Protocol (ECSO OLSRP). Furthermore, the Cat Swarm Optimization (CSO) algorithm determines the ideal route path based on characteristics such as node stability degree and connection stability degree. Because the proposed technique provides secure data transmission, node path setup, and node efficiency evaluation, it can maintain network performance even in the presence of several hostile nodes. The performance of the proposed trust-based approach security routing technique in terms of packet delivery ratio of nodes (0.47), end-to-end delay time of nodes (0.06), network throughput of nodes (1852.22), and control overhead of nodes (7.41).