Title
Weights Which Respect Support And Nn-Decoding
Abstract
In this work we explore a family of metrics over a finite field F-q which respect the support of vectors. We show how these metrics can be obtained from the edge-weighted Hamming cube and, based on this representation we give a description of the group of linear isometries (for q > 2). Next we introduce the concept of conditional sum of metrics and determine what are the conditions that, out of two metrics respecting the support, gives rise to a new such metric. Finally we introduce the labeled-poset block metrics, a new family of metrics which respects support of vectors, filling a gap existing in the known universe of such metrics. For this family we give a full description of the group of linear isometries and determine sufficient conditions for the existence of a MacWilliams' identity.
Year
DOI
Venue
2019
10.1109/ISIT.2019.8849342
2019 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)
Field
DocType
Citations 
Discrete mathematics,Finite field,Isometry,Hamming distance,Decoding methods,Mathematics
Conference
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
roberto assis machado161.94
Marcelo Firer28518.24