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Volume 21 / Issue 9

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DOI:   10.3217/jucs-021-09-1136

 

A Note on Variable-Length Codes with Constant Hamming Weights

Peter Fenwick (The University of Auckland, New Zealand)

Abstract: A recent paper described a variable-length integer code based on the Goldbach conjecture where every codeword had exactly 2 1-bits but with an extremely irregular structure. A later, unpublished, work produced a much more regular code, again with a Hamming weight of 2. This paper extends that later work to weight-3 and weight-4 codes, which are shown to be competitive with more-usual codes over a useful range of values.

Keywords: Hamming-weight 3, Variable-length code

Categories: E.4