Information on Result #672990
Linear OA(2177, 2085, F2, 31) (dual of [2085, 1908, 32]-code), using construction XX applied to Ce(30) ⊂ Ce(26) ⊂ Ce(24) based on
- linear OA(2166, 2048, F2, 31) (dual of [2048, 1882, 32]-code), using an extension Ce(30) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,30], and designed minimum distance d ≥ |I|+1 = 31 [i]
- linear OA(2144, 2048, F2, 27) (dual of [2048, 1904, 28]-code), using an extension Ce(26) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2133, 2048, F2, 25) (dual of [2048, 1915, 26]-code), using an extension Ce(24) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [i]
- linear OA(26, 32, F2, 3) (dual of [32, 26, 4]-code or 32-cap in PG(5,2)), using
- linear OA(21, 5, F2, 1) (dual of [5, 4, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, 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.
Other Results with Identical Parameters
None.
Depending Results
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OA(2176, 2084, F2, 30) (dual of [2084, 1908, 31]-code) | [i] | Truncation | |
| 2 | Linear OOA(2177, 1042, F2, 2, 31) (dual of [(1042, 2), 1907, 32]-NRT-code) | [i] | OOA Folding | |
| 3 | Linear OOA(2177, 695, F2, 3, 31) (dual of [(695, 3), 1908, 32]-NRT-code) | [i] | ||
| 4 | Linear OOA(2177, 521, F2, 4, 31) (dual of [(521, 4), 1907, 32]-NRT-code) | [i] | ||
| 5 | Linear OOA(2177, 417, F2, 5, 31) (dual of [(417, 5), 1908, 32]-NRT-code) | [i] | ||
| 6 | Linear OOA(2177, 347, F2, 6, 31) (dual of [(347, 6), 1905, 32]-NRT-code) | [i] | ||