Efficient link fault detection mechanism for the secure communication in MANET

Abstract

newline Mobile Ad-hoc Network (MANET) is a group of wireless dynamic nodes without any infrastructure and centralized administration. As the environment is dynamic here, the communication among the multiple paths is a critical task. The routing protocols in MANET are relatively vulnerable to the connection failure as well as susceptible to malicious node attacks. Some issues related to security may arise due to the self-organization, decentralization, dynamic changing topology, lack of sufficient information about each nodes, free interruption of malicious nodes, power limitation, channel or bandwidth availability, and no security considerations in routing protocols. Also, the problem related to QoS involves node mobility, limited battery life, hidden terminal problem, unpredictable link properties, security, and route maintenance. newlineIn the existing works, various security and path maintenance techniques are developed for providing a better communication in MANET. Even though they have some advantages like low energy consumption, increased computational performance, reduced complexity, and overhead, they have some limitations such as link failures, malicious node attacks, throughput, inaccuracy, delay, and less packet delivery ratio. newline