Information on Result #1679489
Linear OOA(288, 137, F2, 7, 23) (dual of [(137, 7), 871, 24]-NRT-code), using embedding of OOA with Gilbert–Varšamov bound based on linear OOA(288, 137, F2, 2, 23) (dual of [(137, 2), 186, 24]-NRT-code), using
- OOA 2-folding [i] based on linear OA(288, 274, F2, 23) (dual of [274, 186, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(288, 275, F2, 23) (dual of [275, 187, 24]-code), using
- adding a parity check bit [i] based on linear OA(287, 274, F2, 22) (dual of [274, 187, 23]-code), using
- construction XX applied to C1 = C([253,18]), C2 = C([1,20]), C3 = C1 + C2 = C([1,18]), and C∩ = C1 ∩ C2 = C([253,20]) [i] based on
- linear OA(277, 255, F2, 21) (dual of [255, 178, 22]-code), using the primitive BCH-code C(I) with length 255 = 28−1, defining interval I = {−2,−1,…,18}, and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(276, 255, F2, 20) (dual of [255, 179, 21]-code), using the primitive narrow-sense BCH-code C(I) with length 255 = 28−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- linear OA(285, 255, F2, 23) (dual of [255, 170, 24]-code), using the primitive BCH-code C(I) with length 255 = 28−1, defining interval I = {−2,−1,…,20}, and designed minimum distance d ≥ |I|+1 = 24 [i]
- linear OA(268, 255, F2, 18) (dual of [255, 187, 19]-code), using the primitive narrow-sense BCH-code C(I) with length 255 = 28−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(21, 10, F2, 1) (dual of [10, 9, 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
- linear OA(21, 9, F2, 1) (dual of [9, 8, 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 (see above)
- construction XX applied to C1 = C([253,18]), C2 = C([1,20]), C3 = C1 + C2 = C([1,18]), and C∩ = C1 ∩ C2 = C([253,20]) [i] based on
- adding a parity check bit [i] based on linear OA(287, 274, F2, 22) (dual of [274, 187, 23]-code), using
- discarding factors / shortening the dual code based on linear OA(288, 275, F2, 23) (dual of [275, 187, 24]-code), using
Mode: 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
None.