Delivering a Backup File Using Beamformer Antenna for Partially Failed Nodes

Abstract

This paper addresses the problem of delivering backup file for two or more partially failed nodes at the same time in a cluster. The design objective is to minimize the maximum transmit power of a backup server and enhance the speed of backup file delivering in allowable time span by utilizing smart antenna and clustering scheme for fault tolerance distributed systems. In this work we propose Matched Filter (MF), Minimum Variance Distortion less Response (MVDR), Minimum power distortion less response (MPDR), and Minimum Mean Square Error (MMSE) beamformers to track partially failed nodes in a cluster in order to deliver backup file for two or more nodes at the same time. We have done our simulation using MATLAB to show convergence of beam according to the number of partially failed nodes in a cluster with Signal to Noise Ratio (SNR), to show our propose protocol that is needed for communication among backup servers, backup server with partially failed nodes in a cluster and master backup with agent backup servers and have investigated the performance of our channel model for different scenarios.