Best Known (102, 102+23, s)-Nets in Base 4
(102, 102+23, 1491)-Net over F4 — Constructive and digital
Digital (102, 125, 1491)-net over F4, using
- 42 times duplication [i] based on digital (100, 123, 1491)-net over F4, using
- net defined by OOA [i] based on linear OOA(4123, 1491, F4, 23, 23) (dual of [(1491, 23), 34170, 24]-NRT-code), using
- OOA 11-folding and stacking with additional row [i] based on linear OA(4123, 16402, F4, 23) (dual of [16402, 16279, 24]-code), using
- construction XX applied to Ce(22) ⊂ Ce(20) ⊂ Ce(18) [i] based on
- linear OA(4120, 16384, F4, 23) (dual of [16384, 16264, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(4106, 16384, F4, 21) (dual of [16384, 16278, 22]-code), using an extension Ce(20) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- linear OA(499, 16384, F4, 19) (dual of [16384, 16285, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(41, 16, F4, 1) (dual of [16, 15, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(41, s, F4, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- linear OA(41, 2, F4, 1) (dual of [2, 1, 2]-code), using
- dual of repetition code with length 2 [i]
- construction XX applied to Ce(22) ⊂ Ce(20) ⊂ Ce(18) [i] based on
- OOA 11-folding and stacking with additional row [i] based on linear OA(4123, 16402, F4, 23) (dual of [16402, 16279, 24]-code), using
- net defined by OOA [i] based on linear OOA(4123, 1491, F4, 23, 23) (dual of [(1491, 23), 34170, 24]-NRT-code), using
(102, 102+23, 10368)-Net over F4 — Digital
Digital (102, 125, 10368)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(4125, 10368, F4, 23) (dual of [10368, 10243, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(4125, 16410, F4, 23) (dual of [16410, 16285, 24]-code), using
- construction X applied to Ce(22) ⊂ Ce(18) [i] based on
- linear OA(4120, 16384, F4, 23) (dual of [16384, 16264, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(499, 16384, F4, 19) (dual of [16384, 16285, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(45, 26, F4, 3) (dual of [26, 21, 4]-code or 26-cap in PG(4,4)), using
- discarding factors / shortening the dual code based on linear OA(45, 41, F4, 3) (dual of [41, 36, 4]-code or 41-cap in PG(4,4)), using
- construction X applied to Ce(22) ⊂ Ce(18) [i] based on
- discarding factors / shortening the dual code based on linear OA(4125, 16410, F4, 23) (dual of [16410, 16285, 24]-code), using
(102, 102+23, large)-Net in Base 4 — Upper bound on s
There is no (102, 125, large)-net in base 4, because
- 21 times m-reduction [i] would yield (102, 104, large)-net in base 4, but