Best Known (149−30, 149, s)-Nets in Base 3
(149−30, 149, 688)-Net over F3 — Constructive and digital
Digital (119, 149, 688)-net over F3, using
- 31 times duplication [i] based on digital (118, 148, 688)-net over F3, using
- trace code for nets [i] based on digital (7, 37, 172)-net over F81, using
- net from sequence [i] based on digital (7, 171)-sequence over F81, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F81 with g(F) = 7 and N(F) ≥ 172, using
- net from sequence [i] based on digital (7, 171)-sequence over F81, using
- trace code for nets [i] based on digital (7, 37, 172)-net over F81, using
(149−30, 149, 1853)-Net over F3 — Digital
Digital (119, 149, 1853)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(3149, 1853, F3, 30) (dual of [1853, 1704, 31]-code), using
- discarding factors / shortening the dual code based on linear OA(3149, 2224, F3, 30) (dual of [2224, 2075, 31]-code), using
- construction X applied to C([0,15]) ⊂ C([0,12]) [i] based on
- linear OA(3141, 2188, F3, 31) (dual of [2188, 2047, 32]-code), using the expurgated narrow-sense BCH-code C(I) with length 2188 | 314−1, defining interval I = [0,15], and minimum distance d ≥ |{−15,−14,…,15}|+1 = 32 (BCH-bound) [i]
- linear OA(3113, 2188, F3, 25) (dual of [2188, 2075, 26]-code), using the expurgated narrow-sense BCH-code C(I) with length 2188 | 314−1, defining interval I = [0,12], and minimum distance d ≥ |{−12,−11,…,12}|+1 = 26 (BCH-bound) [i]
- linear OA(38, 36, F3, 4) (dual of [36, 28, 5]-code), using
- discarding factors / shortening the dual code based on linear OA(38, 41, F3, 4) (dual of [41, 33, 5]-code), using
- the narrow-sense BCH-code C(I) with length 41 | 38−1, defining interval I = [1,1], and minimum distance d ≥ |{−3,−1,1,3}|+1 = 5 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(38, 41, F3, 4) (dual of [41, 33, 5]-code), using
- construction X applied to C([0,15]) ⊂ C([0,12]) [i] based on
- discarding factors / shortening the dual code based on linear OA(3149, 2224, F3, 30) (dual of [2224, 2075, 31]-code), using
(149−30, 149, 176240)-Net in Base 3 — Upper bound on s
There is no (119, 149, 176241)-net in base 3, because
- the generalized Rao bound for nets shows that 3m ≥ 123336 174520 977309 864468 487017 810214 071639 450965 316101 412183 426531 663915 > 3149 [i]