Best Known (157, 157+22, s)-Nets in Base 3
(157, 157+22, 48317)-Net over F3 — Constructive and digital
Digital (157, 179, 48317)-net over F3, using
- net defined by OOA [i] based on linear OOA(3179, 48317, F3, 22, 22) (dual of [(48317, 22), 1062795, 23]-NRT-code), using
- OA 11-folding and stacking [i] based on linear OA(3179, 531487, F3, 22) (dual of [531487, 531308, 23]-code), using
- 1 times code embedding in larger space [i] based on linear OA(3178, 531486, F3, 22) (dual of [531486, 531308, 23]-code), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- linear OA(3169, 531441, F3, 22) (dual of [531441, 531272, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 531440 = 312−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(3133, 531441, F3, 17) (dual of [531441, 531308, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 531440 = 312−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(39, 45, F3, 4) (dual of [45, 36, 5]-code), using
- discarding factors / shortening the dual code based on linear OA(39, 80, F3, 4) (dual of [80, 71, 5]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 34−1, defining interval I = [0,2], and designed minimum distance d ≥ |I|+1 = 5 [i]
- discarding factors / shortening the dual code based on linear OA(39, 80, F3, 4) (dual of [80, 71, 5]-code), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(3178, 531486, F3, 22) (dual of [531486, 531308, 23]-code), using
- OA 11-folding and stacking [i] based on linear OA(3179, 531487, F3, 22) (dual of [531487, 531308, 23]-code), using
(157, 157+22, 174680)-Net over F3 — Digital
Digital (157, 179, 174680)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3179, 174680, F3, 3, 22) (dual of [(174680, 3), 523861, 23]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3179, 177162, F3, 3, 22) (dual of [(177162, 3), 531307, 23]-NRT-code), using
- 31 times duplication [i] based on linear OOA(3178, 177162, F3, 3, 22) (dual of [(177162, 3), 531308, 23]-NRT-code), using
- OOA 3-folding [i] based on linear OA(3178, 531486, F3, 22) (dual of [531486, 531308, 23]-code), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- linear OA(3169, 531441, F3, 22) (dual of [531441, 531272, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 531440 = 312−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(3133, 531441, F3, 17) (dual of [531441, 531308, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 531440 = 312−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(39, 45, F3, 4) (dual of [45, 36, 5]-code), using
- discarding factors / shortening the dual code based on linear OA(39, 80, F3, 4) (dual of [80, 71, 5]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 34−1, defining interval I = [0,2], and designed minimum distance d ≥ |I|+1 = 5 [i]
- discarding factors / shortening the dual code based on linear OA(39, 80, F3, 4) (dual of [80, 71, 5]-code), using
- construction X applied to Ce(21) ⊂ Ce(16) [i] based on
- OOA 3-folding [i] based on linear OA(3178, 531486, F3, 22) (dual of [531486, 531308, 23]-code), using
- 31 times duplication [i] based on linear OOA(3178, 177162, F3, 3, 22) (dual of [(177162, 3), 531308, 23]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3179, 177162, F3, 3, 22) (dual of [(177162, 3), 531307, 23]-NRT-code), using
(157, 157+22, large)-Net in Base 3 — Upper bound on s
There is no (157, 179, large)-net in base 3, because
- 20 times m-reduction [i] would yield (157, 159, large)-net in base 3, but