Information on Result #674130
Linear OA(2130, 177, F2, 42) (dual of [177, 47, 43]-code), using construction XX applied to C([1,42]) ⊂ C([1,28]) ⊂ C([1,26]) based on
- linear OA(298, 127, F2, 42) (dual of [127, 29, 43]-code), using the primitive narrow-sense BCH-code C(I) with length 127 = 27−1, defining interval I = [1,42], and designed minimum distance d ≥ |I|+1 = 43 [i]
- linear OA(284, 127, F2, 30) (dual of [127, 43, 31]-code), using the primitive narrow-sense BCH-code C(I) with length 127 = 27−1, defining interval I = [1,28], and minimum distance d ≥ 31 (sporadic result) [i]
- linear OA(277, 127, F2, 26) (dual of [127, 50, 27]-code), using the primitive narrow-sense BCH-code C(I) with length 127 = 27−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(224, 42, F2, 11) (dual of [42, 18, 12]-code), using
- discarding factors / shortening the dual code based on linear OA(224, 48, F2, 11) (dual of [48, 24, 12]-code), using
- extended quadratic residue code Qe(48,2) [i]
- discarding factors / shortening the dual code based on linear OA(224, 48, F2, 11) (dual of [48, 24, 12]-code), using
- linear OA(24, 8, F2, 3) (dual of [8, 4, 4]-code or 8-cap in PG(3,2)), using
Mode: Constructive and linear.
Optimality
Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.
Compare with Markus Grassl’s online database of code parameters.
Other Results with Identical Parameters
None.
Depending Results
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OA(2131, 178, F2, 43) (dual of [178, 47, 44]-code) | [i] | Adding a Parity Check Bit | |
| 2 | Linear OOA(2130, 59, F2, 3, 42) (dual of [(59, 3), 47, 43]-NRT-code) | [i] | OOA Folding | |