Multilevel single-error-correcting codes
Patrick Guy Farrell, Z. Al-Bandar · Electronics Letters · 1974
A class of pseudocyclic multilevel single-error-correcting code is described, and an example of a 5-level code is given. Some of these codes have parameters. such as block length, number of parity-check digits etc., which are unrealisable with strictly cyclic codes. Pseudocyclic codes share the mathematical structure of cyclic codes, and thus are relatively simple to implement in practical form