Abstract
Topology control is of great significance to reduce energy consumption of wireless sensor network nodes and prolong network lifetime. Different tasks taken by nodes may lead to node failures and fractures of data transmission links, hence undermining the overall network performance. In response to such problems, this paper presents a network topology control algorithm based on mobile nodes that fully considers node energy, node degree and network connectivity. Furthermore, a topology control model is established to analyze weak network topology areas and carry out local topology refactoring. Finally, a simulation experiment demonstrates that the presented algorithm is advantageous in balanced network energy consumption and network connectivity.
Highlights
In recent years, WSN has many important applications in such areas as national defense and military, national security, environmental monitoring, medical health and household
Different tasks taken by nodes may lead to node failures and fractures of data transmission links, undermining the overall network performance. In response to such problems, this paper presents a network topology control algorithm based on mobile nodes that fully considers node energy, node degree and network connectivity
This paper presents a network topology control algorithm based on mobile nodes to analyze areas with weak network links, where mobile nodes are introduced to predict potential failed links and local topology control is exercised, reducing global topology cost and enhancing network connectivity
Summary
WSN has many important applications in such areas as national defense and military, national security, environmental monitoring, medical health and household. Kubisch et al [5] have advanced a power control method based on node degree, in which node degree is controlled within an appropriate range via dynamic adjustment of transmitting power to reduce network energy consumption It is, difficult for such algorithm to guarantee network connectivity. There are a variety of factors influencing network topology control which is, aimed at how to reduce network energy consumption and increase network lifetime without affecting network connectivity In this context, this paper presents a network topology control algorithm based on mobile nodes to analyze areas with weak network links, where mobile nodes are introduced to predict potential failed links and local topology control is exercised, reducing global topology cost and enhancing network connectivity
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