Best Known (68, 68+14, s)-Nets in Base 8
(68, 68+14, 74900)-Net over F8 — Constructive and digital
Digital (68, 82, 74900)-net over F8, using
- net defined by OOA [i] based on linear OOA(882, 74900, F8, 14, 14) (dual of [(74900, 14), 1048518, 15]-NRT-code), using
- OA 7-folding and stacking [i] based on linear OA(882, 524300, F8, 14) (dual of [524300, 524218, 15]-code), using
- discarding factors / shortening the dual code based on linear OA(882, 524302, F8, 14) (dual of [524302, 524220, 15]-code), using
- trace code [i] based on linear OA(6441, 262151, F64, 14) (dual of [262151, 262110, 15]-code), using
- construction X applied to Ce(13) ⊂ Ce(11) [i] based on
- linear OA(6440, 262144, F64, 14) (dual of [262144, 262104, 15]-code), using an extension Ce(13) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,13], and designed minimum distance d ≥ |I|+1 = 14 [i]
- linear OA(6434, 262144, F64, 12) (dual of [262144, 262110, 13]-code), using an extension Ce(11) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,11], and designed minimum distance d ≥ |I|+1 = 12 [i]
- linear OA(641, 7, F64, 1) (dual of [7, 6, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(641, s, F64, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(13) ⊂ Ce(11) [i] based on
- trace code [i] based on linear OA(6441, 262151, F64, 14) (dual of [262151, 262110, 15]-code), using
- discarding factors / shortening the dual code based on linear OA(882, 524302, F8, 14) (dual of [524302, 524220, 15]-code), using
- OA 7-folding and stacking [i] based on linear OA(882, 524300, F8, 14) (dual of [524300, 524218, 15]-code), using
(68, 68+14, 524302)-Net over F8 — Digital
Digital (68, 82, 524302)-net over F8, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(882, 524302, F8, 14) (dual of [524302, 524220, 15]-code), using
- trace code [i] based on linear OA(6441, 262151, F64, 14) (dual of [262151, 262110, 15]-code), using
- construction X applied to Ce(13) ⊂ Ce(11) [i] based on
- linear OA(6440, 262144, F64, 14) (dual of [262144, 262104, 15]-code), using an extension Ce(13) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,13], and designed minimum distance d ≥ |I|+1 = 14 [i]
- linear OA(6434, 262144, F64, 12) (dual of [262144, 262110, 13]-code), using an extension Ce(11) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,11], and designed minimum distance d ≥ |I|+1 = 12 [i]
- linear OA(641, 7, F64, 1) (dual of [7, 6, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(641, s, F64, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(13) ⊂ Ce(11) [i] based on
- trace code [i] based on linear OA(6441, 262151, F64, 14) (dual of [262151, 262110, 15]-code), using
(68, 68+14, large)-Net in Base 8 — Upper bound on s
There is no (68, 82, large)-net in base 8, because
- 12 times m-reduction [i] would yield (68, 70, large)-net in base 8, but