Raspberry Pi Clustering for VoIP Communication

Abstract

In this article, we examined a Raspberry Pi cluster for VoIP applications. The VoIP application is run in two different experimental setups. One uses a single Raspberry Pi board and the other uses a Raspberry Pi cluster with three Raspberry Pi boards as nodes. In this cluster, you set up a parallel processing algorithm called Massage Transfer Interface (MPI) to share the load within the node. Both settings generate simultaneous voice calls. CPU utilization and call count (flow) performance were analyzed for both settings. Clustering performance has been significantly improved.