# American Institute of Mathematical Sciences

May  2011, 5(2): 225-232. doi: 10.3934/amc.2011.5.225

## On lattices, binary codes, and network codes

 1 University of Applied Sciences Darmstadt, Faculty of Computer Science, D-64295 Darmstadt, Germany

Received  April 2010 Revised  October 2010 Published  May 2011

Network codes are sets of subspaces of a finite vectorspace over a finite field. Recently, this class of codes has found application in the error correction of message transmission within networks. Furthermore, binary codes can be represented as sets of subsets of a finite set. Hence, both kinds of codes can be regarded as substructures of lattices — in the first case it is the linear lattice and in the second case it is the power set lattice. This observation leads us to a more general investigation of similarities of both theories by means of lattice theory. In this paper we first examine general results of lattices in order to comprise basic considerations of network coding and binary vector coding theory. Afterwards we consider the issue of finding complements of subspaces.
Citation: Michael Braun. On lattices, binary codes, and network codes. Advances in Mathematics of Communications, 2011, 5 (2) : 225-232. doi: 10.3934/amc.2011.5.225
##### References:
 [1] G. Birkhoff, "Lattice Theory,'' revised edition,, Amer. Math. Soc. Colloquium Publications, (1948). [2] W. E. Clark, Matching subspaces with complements in finite vector spaces,, in, 8 (1992), 33. [3] T. Etzion and A. Vardy, Coding theory in projective spaces,, in, (2008). [4] T. Etzion and A. Vardy, Error-correcting codes in projective spaces,, in, (2008). doi: 10.1109/ISIT.2008.4595111. [5] R. Koetter and F. Kschischang, Coding for errors and erasures in random network coding,, IEEE Trans. Inform. Theory, 54 (2008), 3579. doi: 10.1109/TIT.2008.926449.

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##### References:
 [1] G. Birkhoff, "Lattice Theory,'' revised edition,, Amer. Math. Soc. Colloquium Publications, (1948). [2] W. E. Clark, Matching subspaces with complements in finite vector spaces,, in, 8 (1992), 33. [3] T. Etzion and A. Vardy, Coding theory in projective spaces,, in, (2008). [4] T. Etzion and A. Vardy, Error-correcting codes in projective spaces,, in, (2008). doi: 10.1109/ISIT.2008.4595111. [5] R. Koetter and F. Kschischang, Coding for errors and erasures in random network coding,, IEEE Trans. Inform. Theory, 54 (2008), 3579. doi: 10.1109/TIT.2008.926449.
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