Improved Lifetime in a Network Composed of Fixed Nodes with Energy Restriction

With the everyday development of Wireless Sensor Network, the use of wireless nodes has spread extremely widely. An important challenge involves the issue of energy consumption, which has been reduced in the literature using various methods. This study seeks to use the idea of mobile sinks for this purpose, where the sink approaches nodes with greater data transfer, which can thus be performed at a shorter distance. The proposed algorithm uses a sink location method in which the best locations and regions for sink placement or movement are selected due to the larger number of sensors in terms of energy. The best sink location is obtained by comparing it with the average node locations. Based on one of the four main directions and by performing sink calculations, it moves to the optimal location. If the sink's neighbor loses one or more energy levels (more than twenty levels, 5% of total energy), the sink decides to move to another point and does the same until the end. The results show that the proposed method makes good progress in selecting the next node and reducing energy consumption.