Best Known (68−22, 68, s)-Nets in Base 128
(68−22, 68, 190651)-Net over F128 — Constructive and digital
Digital (46, 68, 190651)-net over F128, using
- 1 times m-reduction [i] based on digital (46, 69, 190651)-net over F128, using
- net defined by OOA [i] based on linear OOA(12869, 190651, F128, 23, 23) (dual of [(190651, 23), 4384904, 24]-NRT-code), using
- OOA 11-folding and stacking with additional row [i] based on linear OA(12869, 2097162, F128, 23) (dual of [2097162, 2097093, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(12869, 2097163, F128, 23) (dual of [2097163, 2097094, 24]-code), using
- construction X applied to Ce(22) ⊂ Ce(19) [i] based on
- linear OA(12867, 2097152, F128, 23) (dual of [2097152, 2097085, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(12858, 2097152, F128, 20) (dual of [2097152, 2097094, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(1282, 11, F128, 2) (dual of [11, 9, 3]-code or 11-arc in PG(1,128)), using
- discarding factors / shortening the dual code based on linear OA(1282, 128, F128, 2) (dual of [128, 126, 3]-code or 128-arc in PG(1,128)), using
- Reed–Solomon code RS(126,128) [i]
- discarding factors / shortening the dual code based on linear OA(1282, 128, F128, 2) (dual of [128, 126, 3]-code or 128-arc in PG(1,128)), using
- construction X applied to Ce(22) ⊂ Ce(19) [i] based on
- discarding factors / shortening the dual code based on linear OA(12869, 2097163, F128, 23) (dual of [2097163, 2097094, 24]-code), using
- OOA 11-folding and stacking with additional row [i] based on linear OA(12869, 2097162, F128, 23) (dual of [2097162, 2097093, 24]-code), using
- net defined by OOA [i] based on linear OOA(12869, 190651, F128, 23, 23) (dual of [(190651, 23), 4384904, 24]-NRT-code), using
(68−22, 68, 1048585)-Net over F128 — Digital
Digital (46, 68, 1048585)-net over F128, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(12868, 1048585, F128, 2, 22) (dual of [(1048585, 2), 2097102, 23]-NRT-code), using
- OOA 2-folding [i] based on linear OA(12868, 2097170, F128, 22) (dual of [2097170, 2097102, 23]-code), using
- discarding factors / shortening the dual code based on linear OA(12868, 2097171, F128, 22) (dual of [2097171, 2097103, 23]-code), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- linear OA(12864, 2097152, F128, 22) (dual of [2097152, 2097088, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(12849, 2097152, F128, 17) (dual of [2097152, 2097103, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 1283−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(1284, 19, F128, 4) (dual of [19, 15, 5]-code or 19-arc in PG(3,128)), using
- discarding factors / shortening the dual code based on linear OA(1284, 128, F128, 4) (dual of [128, 124, 5]-code or 128-arc in PG(3,128)), using
- Reed–Solomon code RS(124,128) [i]
- discarding factors / shortening the dual code based on linear OA(1284, 128, F128, 4) (dual of [128, 124, 5]-code or 128-arc in PG(3,128)), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- discarding factors / shortening the dual code based on linear OA(12868, 2097171, F128, 22) (dual of [2097171, 2097103, 23]-code), using
- OOA 2-folding [i] based on linear OA(12868, 2097170, F128, 22) (dual of [2097170, 2097102, 23]-code), using
(68−22, 68, large)-Net in Base 128 — Upper bound on s
There is no (46, 68, large)-net in base 128, because
- 20 times m-reduction [i] would yield (46, 48, large)-net in base 128, but