4 papers
Weighted-Hamming Metric for Parallel Channels
Sebastian Bitzer, Alberto Ravagnani, Violetta Weger
Independent parallel q-ary symmetric channels are a suitable transmission model for several applications. The proposed weighted-Hamming metric is tailored to this setting and enabl…
Better bounds on the minimal Lee distance
Jessica Bariffi, Violetta Weger
This paper provides new and improved Singleton-like bounds for Lee metric codes over integer residue rings. We derive the bounds using various novel definitions of generalized Lee…
On the Number of -Lee-Error-Correcting Codes
Nadja Willenborg, Anna-Lena Horlemann, Violetta Weger
We consider -Lee-error-correcting codes of length over the residue ring and determine upper and lower bounds on the number of -Le…
Generic Decoding of Restricted Errors
Marco Baldi, Sebastian Bitzer, Alessio Pavoni +3
Several recently proposed code-based cryptosystems base their security on a slightly generalized version of the classical (syndrome) decoding problem. Namely, in the so-called rest…