Enhancing transmission control protocol performance for Mobile Ad-hoc network

Abstract

Mobile Ad-hoc Network (MANET) is a special type of wireless network with self-organizing, building shared routing information, dynamic network connectivity without any dependence on fixed infrastructures for wireless communication. However, the dynamics and the unpredictable behavior of wireless Mobile Ad-hoc Networks (MANET) results in hindrance are providing sufficient reliability to the network connection. Frequent route changes in the network relatively introduce incessant link failure, which eventually degrades Transmission Control Protocol (TCP) performance considerably. In another hand, a traditional TCP cannot be detected route failure losses and link contention losses that occur in MANET. Thus, considers every packet loss as congestion, which as a result is a severe degradation of TCP performance. Therefore, we are about addressing the potential enhancement of the performance of TCP when Explicit Link Failure Notification (ELFN) is implemented as opposed to the traditional TCP system. The goal of ELFN is to modify the slow start mechanism that is employed in the standard TCP so that the quality of service achieved from the network can be maximized. The network simulation (NS-2) tool is used for implementation, test and evaluates TCP-ELFN. The numerical results indicate of the study show that TCP-ELFN outperforms the performance of standard TCP with packet loss, delay and normalized routing load is reduced significantly to 28%, 23%, and 60%, respectively.Mobile Ad-hoc Network (MANET) is a special type of wireless network with self-organizing, building shared routing information, dynamic network connectivity without any dependence on fixed infrastructures for wireless communication. However, the dynamics and the unpredictable behavior of wireless Mobile Ad-hoc Networks (MANET) results in hindrance are providing sufficient reliability to the network connection. Frequent route changes in the network relatively introduce incessant link failure, which eventually degrades Transmission Control Protocol (TCP) performance considerably. In another hand, a traditional TCP cannot be detected route failure losses and link contention losses that occur in MANET. Thus, considers every packet loss as congestion, which as a result is a severe degradation of TCP performance. Therefore, we are about addressing the potential enhancement of the performance of TCP when Explicit Link Failure Notification (ELFN) is implemented as opposed to the traditional TCP system. The goal of...