Best Known (161, 161+19, s)-Nets in Base 3
(161, 161+19, 531449)-Net over F3 — Constructive and digital
Digital (161, 180, 531449)-net over F3, using
- (u, u+v)-construction [i] based on
- digital (2, 11, 8)-net over F3, using
- net from sequence [i] based on digital (2, 7)-sequence over F3, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F3 with g(F) = 2 and N(F) ≥ 8, using
- net from sequence [i] based on digital (2, 7)-sequence over F3, using
- digital (150, 169, 531441)-net over F3, using
- net defined by OOA [i] based on linear OOA(3169, 531441, F3, 19, 19) (dual of [(531441, 19), 10097210, 20]-NRT-code), using
- OOA 9-folding and stacking with additional row [i] based on linear OA(3169, 4782970, F3, 19) (dual of [4782970, 4782801, 20]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 4782970 | 328−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- OOA 9-folding and stacking with additional row [i] based on linear OA(3169, 4782970, F3, 19) (dual of [4782970, 4782801, 20]-code), using
- net defined by OOA [i] based on linear OOA(3169, 531441, F3, 19, 19) (dual of [(531441, 19), 10097210, 20]-NRT-code), using
- digital (2, 11, 8)-net over F3, using
(161, 161+19, 1370134)-Net over F3 — Digital
Digital (161, 180, 1370134)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3180, 1370134, F3, 3, 19) (dual of [(1370134, 3), 4110222, 20]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3180, 1594345, F3, 3, 19) (dual of [(1594345, 3), 4782855, 20]-NRT-code), using
- OOA 3-folding [i] based on linear OA(3180, 4783035, F3, 19) (dual of [4783035, 4782855, 20]-code), using
- discarding factors / shortening the dual code based on linear OA(3180, 4783037, F3, 19) (dual of [4783037, 4782857, 20]-code), using
- construction X applied to C([0,9]) ⊂ C([0,6]) [i] based on
- linear OA(3169, 4782970, F3, 19) (dual of [4782970, 4782801, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 4782970 | 328−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
- linear OA(3113, 4782970, F3, 13) (dual of [4782970, 4782857, 14]-code), using the expurgated narrow-sense BCH-code C(I) with length 4782970 | 328−1, defining interval I = [0,6], and minimum distance d ≥ |{−6,−5,…,6}|+1 = 14 (BCH-bound) [i]
- linear OA(311, 67, F3, 5) (dual of [67, 56, 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([0,9]) ⊂ C([0,6]) [i] based on
- discarding factors / shortening the dual code based on linear OA(3180, 4783037, F3, 19) (dual of [4783037, 4782857, 20]-code), using
- OOA 3-folding [i] based on linear OA(3180, 4783035, F3, 19) (dual of [4783035, 4782855, 20]-code), using
- discarding factors / shortening the dual code based on linear OOA(3180, 1594345, F3, 3, 19) (dual of [(1594345, 3), 4782855, 20]-NRT-code), using
(161, 161+19, large)-Net in Base 3 — Upper bound on s
There is no (161, 180, large)-net in base 3, because
- 17 times m-reduction [i] would yield (161, 163, large)-net in base 3, but