Prolonging the lifetime of wireless sensor networks by hierarchical organization of the system in clusters with unequal sizes

Wireless sensor networks are a new type of telecommunication networks with many areas of implementation. These systems are known for their many advantages and few disadvantages. This paper investigates one of the biggest problems in this research field - the unequal energy dissipation and the unequal lifetime of the sensor motes. In order to solve this problem, first the standard approach for hierarchical organization of the networks is analyzed and then a solution for solving of this problem is proposed. Simulation models of wireless sensor networks are created using MatLAB, and the results of the evaluation of the new approach are compared to the results obtained by the standard one.