OICC Press Majlesi Journal of Electrical Engineering 2345-3796 14 3 2024 02 15 Routing Improvement in Underwater Wireless Sensor Networks for Energy Saving Purposes 10.29252/mjee.14.3.7 EN Mohammad Nokhodian Department of Electrical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran. Farhad Mesrinejad Department of Electrical Engineering, Tiran Branch, Islamic Azad University, Isfahan, Iran Hossein Emami Department of Electrical Engineering, Majlesi Branch, Islamic Azad University, Majlesi, Isfahan 9631656769, Iran Journal Article 2024 02 15 Underwater wireless sensor networks have attracted much attention in various applications such as natural disasters monitoring, defense, industries, etc. A new routing algorithm for underwater wireless sensor networks is developed and tested. The algorithm shows a better end-to-end delay yet less energy consumption. This was achieved by limiting the data transmission to a number of specific adjacent nodes to whom the transmitter is authorized to send the message. The algorithm performance was compared with other algorithms (depth based routing and cooperative depth based routing protocols) and the results show a better performance.