Review on sink mobility-based routing algorithms in WSN proposed in the Year 2022

Through the Wireless Sensor Network (WSN), researchers have made every effort in advancing sensing technology worldwide. However, the essence of communication is deeply affected by the limited battery operating nature of sensor nodes. A lot of research efforts are reported that deal with this concern. Besides, the routing algorithms that tend to promise energy-efficient and optimized routing still fail to achieve optimized performance. Henceforth, sink mobility is one of the eminent solutions that tend to optimize the network through energy-saving routing strategies. In this paper, we have reviewed the sink mobility-based routing algorithms that are proposed for the Year 2022. We believe this review will help the readers to improvise the routing strategy by identifying the research gaps in the existing techniques.