Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Construction of Multiple Access Channel Codes Based on Hash Property   The aim of this paper is to introduce the construction of codes for a general
discrete stationary memoryless multiple access channel based on the the notion
of the hash property. Since an ensemble of sparse matrices has a hash property,
we can use sparse matrices for code construction. Our approach has a potential
advantage compared to the conventional random coding because it is expected
that we can use some approximation algorithms by using the sparse structure of
codes.

36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess