Sammanfattning
Quasi-twisted (QT) codes are a generalization of quasi-cyclic (QC) codes. Based on consta-cyclic simplex codes, a new explicit construction of a family of 2-generator quasi-twisted (QT) two-weight codes is presented. It is also shown that many codes in the family meet the Griesmer bound and therefore are length-optimal. New distance-optimal binary QC [195, 8, 96], [210, 8, 104] and [240, 8, 120] codes, and good ternary QC [208, 6, 135] and [221, 6, 144] codes are also obtained by the construction.
| Originalspråk | Engelska |
|---|---|
| Sidor (från-till) | 5770-5773 |
| Antal sidor | 3 |
| Tidskrift | IEEE Transactions on Information Theory |
| Volym | 54 |
| Nummer | 12 |
| Status | Publicerad - 2008 |
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