BBAuthors: Donta, Praveen Kumar; Advisor: -; Participants: Rao, Banoth Sanjai Prasada; Amgoth, Tarachand; Annavarapu, Chandra Sekhara Rao; Swain, Silpamayee (2019)
Wireless sensor networks (WSNs) are composed with a set of sensor nodes, and its primary task is to sense and relay the data to the base station or sink. Sensor nodes are equipped with a limited battery, and more energy is consumed due to the relay of the data. While relaying on more data, nodes near to the base station will die soon and result in energy-hole or hotspot problem. A mobile sink has been introduced to collect the data from the nodes to avoid the hotspot problem. Several data collection algorithms have been proposed for 2D WSNs; however, these algorithms do not meet the requirements of the 3D WSNs due to its variations in topology, connectivity, coverage, scalability, etc... 
