Title
Algorithms for computing network coding rate regions via single element extensions of matroids
Abstract
We propose algorithms for finding extreme rays of rate regions achievable with vector linear codes over finite fields Fq, q ∈ {2, 3, 4} for which there are known forbidden minors for matroid representability. We use the idea of single element extensions (SEEs) of matroids and enumeration of non-isomorphic matroids using SEEs, to first propose an algorithm to obtain lists of all non-isomorphic matroids representable over a given finite field.We modify this algorithm to produce only the list of all non-isomorphic connected matroids representable over the given finite field. We then integrate the process of testing which matroids in a list of matroids form valid linear network codes for a given network within matroid enumeration. We name this algorithm, which essentially builds all matroids that form valid network codes for a given network from scratch, as network-constrained matroid enumeration.
Year
DOI
Venue
2014
10.1109/ISIT.2014.6875245
Information Theory
Keywords
DocType
Citations 
combinatorial mathematics,linear codes,matrix algebra,network coding,vectors,SEE,extreme rays,finite fields,linear network codes,matroid representability,network coding rate regions,network-constrained matroid enumeration,nonisomorphic matroids,single element extensions,vector linear codes,Single emement extensions,rate regions of multi-source network coding problems,region of entropic vectors
Conference
3
PageRank 
References 
Authors
0.45
0
3
Name
Order
Citations
PageRank
Jayant Apte1222.65
Congduan Li2407.75
John MacLaren Walsh310717.90