Best Known (129, 129+15, s)-Nets in Base 2
(129, 129+15, 149799)-Net over F2 — Constructive and digital
Digital (129, 144, 149799)-net over F2, using
- 22 times duplication [i] based on digital (127, 142, 149799)-net over F2, using
- net defined by OOA [i] based on linear OOA(2142, 149799, F2, 15, 15) (dual of [(149799, 15), 2246843, 16]-NRT-code), using
- OOA 7-folding and stacking with additional row [i] based on linear OA(2142, 1048594, F2, 15) (dual of [1048594, 1048452, 16]-code), using
- discarding factors / shortening the dual code based on linear OA(2142, 1048597, F2, 15) (dual of [1048597, 1048455, 16]-code), using
- construction X applied to Ce(14) ⊂ Ce(12) [i] based on
- linear OA(2141, 1048576, F2, 15) (dual of [1048576, 1048435, 16]-code), using an extension Ce(14) of the primitive narrow-sense BCH-code C(I) with length 1048575 = 220−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
- linear OA(2121, 1048576, F2, 13) (dual of [1048576, 1048455, 14]-code), using an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 1048575 = 220−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- linear OA(21, 21, F2, 1) (dual of [21, 20, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(14) ⊂ Ce(12) [i] based on
- discarding factors / shortening the dual code based on linear OA(2142, 1048597, F2, 15) (dual of [1048597, 1048455, 16]-code), using
- OOA 7-folding and stacking with additional row [i] based on linear OA(2142, 1048594, F2, 15) (dual of [1048594, 1048452, 16]-code), using
- net defined by OOA [i] based on linear OOA(2142, 149799, F2, 15, 15) (dual of [(149799, 15), 2246843, 16]-NRT-code), using
(129, 129+15, 184911)-Net over F2 — Digital
Digital (129, 144, 184911)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2144, 184911, F2, 5, 15) (dual of [(184911, 5), 924411, 16]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2144, 209720, F2, 5, 15) (dual of [(209720, 5), 1048456, 16]-NRT-code), using
- OOA 5-folding [i] based on linear OA(2144, 1048600, F2, 15) (dual of [1048600, 1048456, 16]-code), using
- 2 times code embedding in larger space [i] based on linear OA(2142, 1048598, F2, 15) (dual of [1048598, 1048456, 16]-code), using
- construction X4 applied to Ce(14) ⊂ Ce(12) [i] based on
- linear OA(2141, 1048576, F2, 15) (dual of [1048576, 1048435, 16]-code), using an extension Ce(14) of the primitive narrow-sense BCH-code C(I) with length 1048575 = 220−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
- linear OA(2121, 1048576, F2, 13) (dual of [1048576, 1048455, 14]-code), using an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 1048575 = 220−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- linear OA(221, 22, F2, 21) (dual of [22, 1, 22]-code or 22-arc in PG(20,2)), using
- dual of repetition code with length 22 [i]
- linear OA(21, 22, F2, 1) (dual of [22, 21, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(14) ⊂ Ce(12) [i] based on
- 2 times code embedding in larger space [i] based on linear OA(2142, 1048598, F2, 15) (dual of [1048598, 1048456, 16]-code), using
- OOA 5-folding [i] based on linear OA(2144, 1048600, F2, 15) (dual of [1048600, 1048456, 16]-code), using
- discarding factors / shortening the dual code based on linear OOA(2144, 209720, F2, 5, 15) (dual of [(209720, 5), 1048456, 16]-NRT-code), using
(129, 129+15, 4770133)-Net in Base 2 — Upper bound on s
There is no (129, 144, 4770134)-net in base 2, because
- 1 times m-reduction [i] would yield (129, 143, 4770134)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 11 150385 717302 507752 648099 888339 395443 398692 > 2143 [i]