Cluster based routing method using mobile sinks in wireless sensor network

ABSTRACT

In recent years, due to technology development, applying WSNs has increased, and consequently, researchers have developed an interest in dealing with the problems of WSNs. The power-limitation issue of sensor nodes brings a serious challenge for employing WSNs. Clustering has a significant effect on increasing the network lifetime. Also, using mobile sinks is an ideal solution to improve network efficiency and lifetime as well as reducing end-to-end delay. In this study, all nodes are clustered and scored. Next, the nodes with the highest scores are selected as CHs. Then the network is partitioned. Here, mobile sinks have been applied to save the energy of nodes. The movement of the sinks, which are individually appointed to each section, is controlled by two parameters. The proposed method was simulated via MATLAB and was compared with PRD, ETX, EFW and PDX methods. The results revealed an improvement in energy consumption, end-to-end delay, packet delivery rate and the number of alive nodes in the network.

KEYWORDS:

• Wireless sensor network
• mobile sink
• clustering
• routing
• energy consumption

Disclosure statement

No potential conflict of interest was reported by the author(s).