TY - JOUR
T1 - Delivering a Backup File Using Beamformer Antenna for Partially Failed Nodes
AU - Amare Teferi, Yu Li
JO - Journal of Information and Computing Science
VL - 2
SP - 099
EP - 108
PY - 2024
DA - 2024/01
SN - 5
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jics/22717.html
KW -  Distributed  Systems,  Backup  Server,  Directional  Antennas,  Smart  Antennas,  Clustering, 
capacity. 

AB - 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.