Reliability of cluster head node based upon parametric constraints in underwater acoustic sensor networks

Underwater wireless sensor network (UWSN) has emerged as one of the most popular network technologies owing to its applicability to offshore searches, and underwater monitoring and exploration applications. It has been shown to be useful in the fields of investigations and surveillance, and in assisting with and offering solutions to water-based calamities. Reliability in the underwater environment has caused researchers to direct attention towards improving the overall efficiency and energy utilisation of the network. In the present paper, reliable node quester (RNQ) algorithm has been formulated to calculate the node reliability for numerous parameters such as success rate, transmission time, and the affordability, congestion and stability of the nodes. The present paper highlights the data-forwarding mechanism of the nodes to enhance overall network reliability by (i) reducing the packet drop rate; (ii) increasing the packet delivery ratio; and (iii) minimising the energy consumption. Simulation results further support the proposed strategy by ensuring the network lifespan and detection accuracy.

A Linear Path Combined MAC Based Routing for Improving the Energy Efficiency in Underwater Acoustic Network

Energy is one of the important major constraints in all kinds of networks. Sensor nodes meets very less energy, it causes node death, where it creates various problems in data transmission. In this paper it is aimed to improve the energy efficiency by reducing the energy consumption. To do this, a linear path is constructed between end-points, nodes mode is changed into Sleep and Awake, Awake and Sleep and scheduling is applied. These three functionalities provide a very good data transmission with less energy consumption. Simulation of this proposed approach is carried out in NS2 software and the performance is verified in terms of Energy, throughput and delay