Prolonging Lifetime for Wireless Sensor Networks Using   TOPSIS-fuzzy Scheme

Alaei, Mohammad; Yazdanpanah, Fahimeh

Prolonging Lifetime for Wireless Sensor Networks Using TOPSIS-fuzzy Scheme

Document Type : Original Article

Authors

¹ Associate Professor,Computer Engineering Department, Faculty of Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran.

² Associate Professor,Computer Engineering Department,, Faculty of Engineering, Vali-e-Asr University of Rafsanjan.

Abstract

Nowadays, in various fields and applications, wireless sensor networks have wide applications. The main task of sensor nodes in applications is to sense the environment and its changes, as well as report the events in the target area and send the sensed data to the sink or base station. The resource limitation of sensor nodes and the unreliability of low-energy wireless links, and on the other hand, different performance demands in various applications, create challenges in designing a suitable communication protocol with load balancing capability for wireless sensor networks. Efficient clustering can balance load and increase lifetime in wireless sensor networks. In this paper, a method of lifetime prolongation for nodes and thus for wireless sensor networks based on the fuzzy TOPSIS, is proposed. By considering the effective parameters for load balancing, such as the energy of the cluster heads and cluster nodes, cluster stability and data transmission distance, the proposed clustering is carried out in such a way that load balancing causes balanced energy consumption in nodes and increases the network's lifetime. The results of various evaluations show the effectiveness of the proposed method in comparison with other methods in increasing and balancing the lifetime of nodes.

Keywords