Information on Result #1052323
Linear OOA(2255, 2097666, F2, 4, 19) (dual of [(2097666, 4), 8390409, 20]-NRT-code), using OOA 2-folding based on linear OOA(2255, 4195332, F2, 2, 19) (dual of [(4195332, 2), 8390409, 20]-NRT-code), using
- (u, u+v)-construction [i] based on
- linear OOA(247, 1031, F2, 2, 9) (dual of [(1031, 2), 2015, 10]-NRT-code), using
- OOA 2-folding [i] based on linear OA(247, 2062, F2, 9) (dual of [2062, 2015, 10]-code), using
- 1 times code embedding in larger space [i] based on linear OA(246, 2061, F2, 9) (dual of [2061, 2015, 10]-code), using
- construction X4 applied to Ce(8) ⊂ Ce(6) [i] based on
- linear OA(245, 2048, F2, 9) (dual of [2048, 2003, 10]-code), using an extension Ce(8) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,8], and designed minimum distance d ≥ |I|+1 = 9 [i]
- linear OA(234, 2048, F2, 7) (dual of [2048, 2014, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(212, 13, F2, 11) (dual of [13, 1, 12]-code), using
- strength reduction [i] based on linear OA(212, 13, F2, 12) (dual of [13, 1, 13]-code or 13-arc in PG(11,2)), using
- dual of repetition code with length 13 [i]
- strength reduction [i] based on linear OA(212, 13, F2, 12) (dual of [13, 1, 13]-code or 13-arc in PG(11,2)), using
- linear OA(21, 13, F2, 1) (dual of [13, 12, 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
- construction X4 applied to Ce(8) ⊂ Ce(6) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(246, 2061, F2, 9) (dual of [2061, 2015, 10]-code), using
- OOA 2-folding [i] based on linear OA(247, 2062, F2, 9) (dual of [2062, 2015, 10]-code), using
- linear OOA(2208, 4194301, F2, 2, 19) (dual of [(4194301, 2), 8388394, 20]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2208, 8388602, F2, 19) (dual of [8388602, 8388394, 20]-code), using
- discarding factors / shortening the dual code based on linear OA(2208, large, F2, 19) (dual of [large, large−208, 20]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 8388607 = 223−1, defining interval I = [0,18], and designed minimum distance d ≥ |I|+1 = 20 [i]
- discarding factors / shortening the dual code based on linear OA(2208, large, F2, 19) (dual of [large, large−208, 20]-code), using
- OOA 2-folding [i] based on linear OA(2208, 8388602, F2, 19) (dual of [8388602, 8388394, 20]-code), using
- linear OOA(247, 1031, F2, 2, 9) (dual of [(1031, 2), 2015, 10]-NRT-code), using
Mode: Constructive and linear.
Optimality
Show details for fixed k and m, k and s, k and t, m and s, m and t.
Other Results with Identical Parameters
None.
Depending Results
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OOA(2255, 2097666, F2, 4, 18) (dual of [(2097666, 4), 8390409, 19]-NRT-code) | [i] | Strength Reduction for OOAs | |
| 2 | Linear OOA(2256, 2097666, F2, 4, 19) (dual of [(2097666, 4), 8390408, 20]-NRT-code) | [i] | OOA Duplication | |