Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Applied Erasure Coding in Networks and Distributed Storage   The amount of digital data is rapidly growing. There is an increasing use of
a wide range of computer systems, from mobile devices to large-scale data
centers, and important for reliable operation of all computer systems is
mitigating the occurrence and the impact of errors in digital data. The demand
for new ultra-fast and highly reliable coding techniques for data at rest and
for data in transit is a major research challenge. Reliability is one of the
most important design requirements. The simplest way of providing a degree of
reliability is by using data replication techniques. However, replication is
highly inefficient in terms of capacity utilization. Erasure coding has
therefore become a viable alternative to replication since it provides the same
level of reliability as replication with significantly less storage overhead.
The present thesis investigates efficient constructions of erasure codes for
different applications. Methods from both coding and information theory have
been applied to network coding, Optical Packet Switching (OPS) networks and
distributed storage systems. The following four issues are addressed: -
Construction of binary and non-binary erasure codes; - Reduction of the header
overhead due to the encoding coefficients in network coding; - Construction and
implementation of new erasure codes for large-scale distributed storage systems
that provide savings in the storage and network resources compared to
state-of-the-art codes; and - Provision of a unified view on Quality of Service
(QoS) in OPS networks when erasure codes are used, with the focus on Packet
Loss Rate (PLR), survivability and secrecy.

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The categories of this paper are: physics
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
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The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: adap-org