Best Known (39, 39+17, s)-Nets in Base 256
(39, 39+17, 1048575)-Net over F256 — Constructive and digital
Digital (39, 56, 1048575)-net over F256, using
- 2567 times duplication [i] based on digital (32, 49, 1048575)-net over F256, using
- net defined by OOA [i] based on linear OOA(25649, 1048575, F256, 17, 17) (dual of [(1048575, 17), 17825726, 18]-NRT-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(25649, 8388601, F256, 17) (dual of [8388601, 8388552, 18]-code), using
- discarding factors / shortening the dual code based on linear OA(25649, large, F256, 17) (dual of [large, large−49, 18]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 16777215 = 2563−1, defining interval I = [0,16], and designed minimum distance d ≥ |I|+1 = 18 [i]
- discarding factors / shortening the dual code based on linear OA(25649, large, F256, 17) (dual of [large, large−49, 18]-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(25649, 8388601, F256, 17) (dual of [8388601, 8388552, 18]-code), using
- net defined by OOA [i] based on linear OOA(25649, 1048575, F256, 17, 17) (dual of [(1048575, 17), 17825726, 18]-NRT-code), using
(39, 39+17, large)-Net over F256 — Digital
Digital (39, 56, large)-net over F256, using
- 2561 times duplication [i] based on digital (38, 55, large)-net over F256, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(25655, large, F256, 17) (dual of [large, large−55, 18]-code), using
- strength reduction [i] based on linear OA(25655, large, F256, 19) (dual of [large, large−55, 20]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 16777215 = 2563−1, defining interval I = [0,18], and designed minimum distance d ≥ |I|+1 = 20 [i]
- strength reduction [i] based on linear OA(25655, large, F256, 19) (dual of [large, large−55, 20]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(25655, large, F256, 17) (dual of [large, large−55, 18]-code), using
(39, 39+17, large)-Net in Base 256 — Upper bound on s
There is no (39, 56, large)-net in base 256, because
- 15 times m-reduction [i] would yield (39, 41, large)-net in base 256, but