Best Known (172−25, 172, s)-Nets in Base 3
(172−25, 172, 4925)-Net over F3 — Constructive and digital
Digital (147, 172, 4925)-net over F3, using
- net defined by OOA [i] based on linear OOA(3172, 4925, F3, 25, 25) (dual of [(4925, 25), 122953, 26]-NRT-code), using
- OOA 12-folding and stacking with additional row [i] based on linear OA(3172, 59101, F3, 25) (dual of [59101, 58929, 26]-code), using
- construction X applied to C([0,12]) ⊂ C([0,9]) [i] based on
- linear OA(3161, 59050, F3, 25) (dual of [59050, 58889, 26]-code), using the expurgated narrow-sense BCH-code C(I) with length 59050 | 320−1, defining interval I = [0,12], and minimum distance d ≥ |{−12,−11,…,12}|+1 = 26 (BCH-bound) [i]
- linear OA(3121, 59050, F3, 19) (dual of [59050, 58929, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 59050 | 320−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- linear OA(311, 51, F3, 5) (dual of [51, 40, 6]-code), using
- discarding factors / shortening the dual code based on linear OA(311, 85, F3, 5) (dual of [85, 74, 6]-code), using
- construction X applied to C([0,12]) ⊂ C([0,9]) [i] based on
- OOA 12-folding and stacking with additional row [i] based on linear OA(3172, 59101, F3, 25) (dual of [59101, 58929, 26]-code), using
(172−25, 172, 21991)-Net over F3 — Digital
Digital (147, 172, 21991)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3172, 21991, F3, 2, 25) (dual of [(21991, 2), 43810, 26]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3172, 29550, F3, 2, 25) (dual of [(29550, 2), 58928, 26]-NRT-code), using
- OOA 2-folding [i] based on linear OA(3172, 59100, F3, 25) (dual of [59100, 58928, 26]-code), using
- discarding factors / shortening the dual code based on linear OA(3172, 59101, F3, 25) (dual of [59101, 58929, 26]-code), using
- construction X applied to C([0,12]) ⊂ C([0,9]) [i] based on
- linear OA(3161, 59050, F3, 25) (dual of [59050, 58889, 26]-code), using the expurgated narrow-sense BCH-code C(I) with length 59050 | 320−1, defining interval I = [0,12], and minimum distance d ≥ |{−12,−11,…,12}|+1 = 26 (BCH-bound) [i]
- linear OA(3121, 59050, F3, 19) (dual of [59050, 58929, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 59050 | 320−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- linear OA(311, 51, F3, 5) (dual of [51, 40, 6]-code), using
- discarding factors / shortening the dual code based on linear OA(311, 85, F3, 5) (dual of [85, 74, 6]-code), using
- construction X applied to C([0,12]) ⊂ C([0,9]) [i] based on
- discarding factors / shortening the dual code based on linear OA(3172, 59101, F3, 25) (dual of [59101, 58929, 26]-code), using
- OOA 2-folding [i] based on linear OA(3172, 59100, F3, 25) (dual of [59100, 58928, 26]-code), using
- discarding factors / shortening the dual code based on linear OOA(3172, 29550, F3, 2, 25) (dual of [(29550, 2), 58928, 26]-NRT-code), using
(172−25, 172, large)-Net in Base 3 — Upper bound on s
There is no (147, 172, large)-net in base 3, because
- 23 times m-reduction [i] would yield (147, 149, large)-net in base 3, but