#18269: A new structure for experimentation on decoding: communication channels
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Reporter: dlucas | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.7
Component: coding theory | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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For now, there is no structure to easily add errors in codewords. If one
wants to experiment with decoding algorithms on codes, the only possible
way is to add errors "by hand", which is rather tedious.
We propose here a new structure, based on communication channels, on
purpose to facilitate the experimentation process with decoding
algorithms.
For now, our structure consists of:
- an abstract class for channels,
- a channel which adds a specific number of errors at random positions to
each provided vector
- a channel which adds a specific number of errors at random positions to
each provided vector, and erases a specific number of random positions
With this new structure, creating `n` errors in a vector can be done in
one line of code into Sage.
Adding a new Channel class should also be easy: all one needs to do is to
inherit from the abstract class, and override and implement a method.
For better consistency, channels can only be accessed using
channels.<name> (see #15445) from the global namespace.
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Ticket URL: <http://trac.sagemath.org/ticket/18269>
Sage <http://www.sagemath.org>
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