Best Known (174, 174+34, s)-Nets in Base 3
(174, 174+34, 1480)-Net over F3 — Constructive and digital
Digital (174, 208, 1480)-net over F3, using
- t-expansion [i] based on digital (172, 208, 1480)-net over F3, using
- trace code for nets [i] based on digital (16, 52, 370)-net over F81, using
- net from sequence [i] based on digital (16, 369)-sequence over F81, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F81 with g(F) = 16 and N(F) ≥ 370, using
- net from sequence [i] based on digital (16, 369)-sequence over F81, using
- trace code for nets [i] based on digital (16, 52, 370)-net over F81, using
(174, 174+34, 9165)-Net over F3 — Digital
Digital (174, 208, 9165)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3208, 9165, F3, 2, 34) (dual of [(9165, 2), 18122, 35]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3208, 9859, F3, 2, 34) (dual of [(9859, 2), 19510, 35]-NRT-code), using
- 31 times duplication [i] based on linear OOA(3207, 9859, F3, 2, 34) (dual of [(9859, 2), 19511, 35]-NRT-code), using
- OOA 2-folding [i] based on linear OA(3207, 19718, F3, 34) (dual of [19718, 19511, 35]-code), using
- construction X applied to Ce(33) ⊂ Ce(28) [i] based on
- linear OA(3199, 19683, F3, 34) (dual of [19683, 19484, 35]-code), using an extension Ce(33) of the primitive narrow-sense BCH-code C(I) with length 19682 = 39−1, defining interval I = [1,33], and designed minimum distance d ≥ |I|+1 = 34 [i]
- linear OA(3172, 19683, F3, 29) (dual of [19683, 19511, 30]-code), using an extension Ce(28) of the primitive narrow-sense BCH-code C(I) with length 19682 = 39−1, defining interval I = [1,28], and designed minimum distance d ≥ |I|+1 = 29 [i]
- linear OA(38, 35, F3, 4) (dual of [35, 27, 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 Ce(33) ⊂ Ce(28) [i] based on
- OOA 2-folding [i] based on linear OA(3207, 19718, F3, 34) (dual of [19718, 19511, 35]-code), using
- 31 times duplication [i] based on linear OOA(3207, 9859, F3, 2, 34) (dual of [(9859, 2), 19511, 35]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3208, 9859, F3, 2, 34) (dual of [(9859, 2), 19510, 35]-NRT-code), using
(174, 174+34, 2469626)-Net in Base 3 — Upper bound on s
There is no (174, 208, 2469627)-net in base 3, because
- the generalized Rao bound for nets shows that 3m ≥ 1742 705234 083230 181717 563409 681660 646445 630061 160123 270300 893860 334476 775247 664777 493539 950850 621527 > 3208 [i]