Viability-Based Replication Management Scheme for Reliable IoT Data Services
Siwoo Byun · International Journal of Advanced Science and Technology · 2019
This paper proposed a new replication management scheme for IoT sensor network environments.Replicating data across multiple nodes can increase the reliability for the shared data.However, data replication inevitably results in overhead of maintaining data consistency, especially in the event of excessive sensor node failures, requiring more costly synchronization mechanisms.In order to lessen the overhead of excessive node failures in fault-prone IoT sensor networks, a new scheme called sensor delegation con-sensus (SDC) was devised in this study.SDC minimizes the message exchange overheads of performing quorum access processes by means of viable deputy polling method which uses strong sensor nodes except unreliable nodes in polling process.This paper also proposed a computer simulation system to present the efficiency of SDC scheme.The performance evaluation results showed that the SDC model outperforms traditional replication management models.