  The use of network coding for large scale content distribution improves
download time. This is demonstrated in this work by the use of network coded
Electronic Health Record Storage System (EHR-SS). An architecture of 4-layer to
build the EHR-SS is designed. The application integrates the data captured for
the patient from three modules namely administrative data, medical records of
consultation and reports of medical tests. The lower layer is the data
capturing layer using RFID reader. The data is captured in the lower level from
different nodes. The data is combined with some linear coefficients using
linear network coding. At the lower level the data from different tags are
combined and stored and at the level 2 coding combines the data from multiple
readers and a corresponding encoding vector is generated. This network coding
is done at the server node through small mat lab net-cod interface software.
While accessing the stored data, the user data has the data type represented in
the form of decoding vector. For storing and retrieval the primary key is the
patient id. The results obtained were observed with a reduction of download
time of about 12% for our case study set up.
