Best Known (27, 27+20, s)-Nets in Base 256
(27, 27+20, 6556)-Net over F256 — Constructive and digital
Digital (27, 47, 6556)-net over F256, using
- net defined by OOA [i] based on linear OOA(25647, 6556, F256, 20, 20) (dual of [(6556, 20), 131073, 21]-NRT-code), using
- OA 10-folding and stacking [i] based on linear OA(25647, 65560, F256, 20) (dual of [65560, 65513, 21]-code), using
- discarding factors / shortening the dual code based on linear OA(25647, 65562, F256, 20) (dual of [65562, 65515, 21]-code), using
- construction X applied to Ce(19) ⊂ Ce(10) [i] based on
- linear OA(25639, 65536, F256, 20) (dual of [65536, 65497, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(25621, 65536, F256, 11) (dual of [65536, 65515, 12]-code), using an extension Ce(10) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,10], and designed minimum distance d ≥ |I|+1 = 11 [i]
- linear OA(2568, 26, F256, 8) (dual of [26, 18, 9]-code or 26-arc in PG(7,256)), using
- discarding factors / shortening the dual code based on linear OA(2568, 256, F256, 8) (dual of [256, 248, 9]-code or 256-arc in PG(7,256)), using
- Reed–Solomon code RS(248,256) [i]
- discarding factors / shortening the dual code based on linear OA(2568, 256, F256, 8) (dual of [256, 248, 9]-code or 256-arc in PG(7,256)), using
- construction X applied to Ce(19) ⊂ Ce(10) [i] based on
- discarding factors / shortening the dual code based on linear OA(25647, 65562, F256, 20) (dual of [65562, 65515, 21]-code), using
- OA 10-folding and stacking [i] based on linear OA(25647, 65560, F256, 20) (dual of [65560, 65513, 21]-code), using
(27, 27+20, 42257)-Net over F256 — Digital
Digital (27, 47, 42257)-net over F256, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(25647, 42257, F256, 20) (dual of [42257, 42210, 21]-code), using
- discarding factors / shortening the dual code based on linear OA(25647, 65562, F256, 20) (dual of [65562, 65515, 21]-code), using
- construction X applied to Ce(19) ⊂ Ce(10) [i] based on
- linear OA(25639, 65536, F256, 20) (dual of [65536, 65497, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(25621, 65536, F256, 11) (dual of [65536, 65515, 12]-code), using an extension Ce(10) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,10], and designed minimum distance d ≥ |I|+1 = 11 [i]
- linear OA(2568, 26, F256, 8) (dual of [26, 18, 9]-code or 26-arc in PG(7,256)), using
- discarding factors / shortening the dual code based on linear OA(2568, 256, F256, 8) (dual of [256, 248, 9]-code or 256-arc in PG(7,256)), using
- Reed–Solomon code RS(248,256) [i]
- discarding factors / shortening the dual code based on linear OA(2568, 256, F256, 8) (dual of [256, 248, 9]-code or 256-arc in PG(7,256)), using
- construction X applied to Ce(19) ⊂ Ce(10) [i] based on
- discarding factors / shortening the dual code based on linear OA(25647, 65562, F256, 20) (dual of [65562, 65515, 21]-code), using
(27, 27+20, large)-Net in Base 256 — Upper bound on s
There is no (27, 47, large)-net in base 256, because
- 18 times m-reduction [i] would yield (27, 29, large)-net in base 256, but