Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Network Coding Based on Byte-wise Circular Shift and Integer Addition   A novel implementation of a special class of Galois ring, in which the
multiplication can be realized by a cyclic convolution, is applied to the
construction of network codes. The primitive operations involved are byte-wise
shifts and integer additions modulo a power of 2. Both of them can be executed
efficiently in microprocessors. An illustration of how to apply this idea to
array code is given at the end of the paper.

22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph