Best Known (220−36, 220, s)-Nets in Base 3
(220−36, 220, 1480)-Net over F3 — Constructive and digital
Digital (184, 220, 1480)-net over F3, using
- 4 times m-reduction [i] based on digital (184, 224, 1480)-net over F3, using
- trace code for nets [i] based on digital (16, 56, 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, 56, 370)-net over F81, using
(220−36, 220, 9305)-Net over F3 — Digital
Digital (184, 220, 9305)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3220, 9305, F3, 2, 36) (dual of [(9305, 2), 18390, 37]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3220, 9852, F3, 2, 36) (dual of [(9852, 2), 19484, 37]-NRT-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(3218, 9851, F3, 2, 36) (dual of [(9851, 2), 19484, 37]-NRT-code), using
- OOA 2-folding [i] based on linear OA(3218, 19702, F3, 36) (dual of [19702, 19484, 37]-code), using
- construction X applied to Ce(36) ⊂ Ce(33) [i] based on
- linear OA(3217, 19683, F3, 37) (dual of [19683, 19466, 38]-code), using an extension Ce(36) of the primitive narrow-sense BCH-code C(I) with length 19682 = 39−1, defining interval I = [1,36], and designed minimum distance d ≥ |I|+1 = 37 [i]
- 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(31, 19, F3, 1) (dual of [19, 18, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(36) ⊂ Ce(33) [i] based on
- OOA 2-folding [i] based on linear OA(3218, 19702, F3, 36) (dual of [19702, 19484, 37]-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(3218, 9851, F3, 2, 36) (dual of [(9851, 2), 19484, 37]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3220, 9852, F3, 2, 36) (dual of [(9852, 2), 19484, 37]-NRT-code), using
(220−36, 220, 2561999)-Net in Base 3 — Upper bound on s
There is no (184, 220, 2562000)-net in base 3, because
- the generalized Rao bound for nets shows that 3m ≥ 926 139816 139718 342909 629662 579812 335207 805223 354944 648368 796512 654374 359080 890380 432403 672351 959748 415201 > 3220 [i]