A comparative study of centralized and distributed battery approach in Multi-energy harvesting system for UWSN

Underwater sensor network (UWSNs) has sensors and mobile wireless transceivers deployed in under and upper water areas to perform data monitoring and acquisitions. With the emerging technologies UWSNs has many different specific underwater applications. But there are problems and challenges facing underwater environment such as propagation delays, energy limitation, narrow bandwidth, and node mobility. Various protocols have been developed to deal with these issues. Energy consumption is one of the main problems in underwater wireless sensor network as the nodes’ batteries have limited amount of energy. Furthermore, batteries cannot be replaced easily as replacement cost is very high and batteries have high weight. To solve energy consumption problem, firstly multi power harvesting system is developed and optimized using genetic optimization, followed by design of wireless sensor nodes battery energy level model based on multi energy harvested system and its application to centralized and distributed system is investigated and finally followed by discussion and conclusion.