AMCTD: Adaptive Mobility of Courier nodes in Threshold-optimized DBR Protocol for Underwater Wireless Sensor Networks

摘要

In dense underwater sensor networks (UWSN), the major confronts are higherror probability, incessant variation in topology of sensor nodes, and muchenergy consumption for data transmission. However, there are some remarkableapplications of UWSN such as management of seabed and oil reservoirs,exploration of deep sea situation and prevention of aqueous disasters. In orderto accomplish these applications, ignorance of the limitations of acousticcommunications such as high delay and low bandwidth is not feasible. In thispaper, we propose Adaptive mobility of Courier nodes in Threshold-optimizedDepth-based routing (AMCTD), exploring the proficient amendments in depththreshold and implementing the optimal weight function to achieve longernetwork lifetime. We segregate our scheme in 3 major phases of weight updating,depth threshold variation and adaptive mobility of courier nodes. During dataforwarding, we provide the framework for alterations in threshold to cope withthe sparse condition of network. We ultimately perform detailed simulations toscrutinize the performance of our proposed scheme and its comparison with othertwo notable routing protocols in term of network lifetime and other essentialparameters. The simulations results verify that our scheme performs better thanthe other techniques and near to optimal in the field of UWSN.