Assessing the performance of different TCP congestion mechanisms in underwater wireless sensor networks Online publication date: Thu, 07-May-2020
by Hajar Bennouri; Amine A. Berqia
International Journal of Vehicle Information and Communication Systems (IJVICS), Vol. 5, No. 1, 2020
Abstract: Data transmission in Underwater Wireless Sensor Networks (UWSNs) is one of the key enablers used in technologies for future ocean-monitoring systems and other underwater applications. The use of acoustic waves in UWSNs suffer from a high propagation delay, as well as a limited available bandwidth due to the high-noise level, making the use of the different traditional existing protocols a major challenge in this environment. In this paper, we have chosen two TCP mechanisms already defined: TCP Vegas and TCP New Reno, to evaluate the effects of variable TCP packet size and TCP connection density in a subsea network under two common routing protocols, namely AODV and DSDV. The simulation results show that the performances of the two TCPs using DSDV routing protocol provide a more efficient result than those using the AODV routing protocol and that New Reno TCP gives better results than Vegas TCP in the UWSNs.
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