Study on the effect of sink moving trajectory on wireless sensor networks

International Conference on Functional Materials and Chemical Engineering 2017

材料科学;化学工业

Zhong, Peijun^1 ; Ruan, Feng^2

ZTEsoft Technology Co. Ltd., Nanjing

210012, China^1

School of Information and Control, Nanjing University of Information Science and Technology, Nanjing

210044, China^2

关键词: Cluster head;    Experimental simulations;    Hot spot;    Hot spot problem;    Mobile sinks;    Network lifetime;    Sink nodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/323/1/012028/pdf
DOI  :  10.1088/1757-899X/323/1/012028

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Wireless sensor networks are developing very fast in recent years, due to their wide potential applications. However there exists the so-called hot spot problem, namely the nodes close to static sink node tend to die earlier than other nodes since they have heavier burden to forward. The introduction of mobile sink node can effectively alleviate this problem since sink node can move along certain trajectories, causing hot spot nodes more evenly distributed. In this paper, we make extensive experimental simulations for circular sensor network, with one mobile sink moving along different radius circumference. The whole network is divided into several clusters and there is one cluster head (CH) inside each cluster. The ordinary sensors communicate with CH and CHs construct a chain until the sink node. Simulation results show that the best network performance appears when sink moves along 0.25 R in terms of network lifetime.