Best Known (139, 163, s)-Nets in Base 4
(139, 163, 21846)-Net over F4 — Constructive and digital
Digital (139, 163, 21846)-net over F4, using
- net defined by OOA [i] based on linear OOA(4163, 21846, F4, 24, 24) (dual of [(21846, 24), 524141, 25]-NRT-code), using
- OA 12-folding and stacking [i] based on linear OA(4163, 262152, F4, 24) (dual of [262152, 261989, 25]-code), using
- discarding factors / shortening the dual code based on linear OA(4163, 262153, F4, 24) (dual of [262153, 261990, 25]-code), using
- 1 times truncation [i] based on linear OA(4164, 262154, F4, 25) (dual of [262154, 261990, 26]-code), using
- construction X applied to Ce(24) ⊂ Ce(22) [i] based on
- linear OA(4163, 262144, F4, 25) (dual of [262144, 261981, 26]-code), using an extension Ce(24) of the primitive narrow-sense BCH-code C(I) with length 262143 = 49−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [i]
- linear OA(4154, 262144, F4, 23) (dual of [262144, 261990, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 262143 = 49−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(41, 10, F4, 1) (dual of [10, 9, 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
- construction X applied to Ce(24) ⊂ Ce(22) [i] based on
- 1 times truncation [i] based on linear OA(4164, 262154, F4, 25) (dual of [262154, 261990, 26]-code), using
- discarding factors / shortening the dual code based on linear OA(4163, 262153, F4, 24) (dual of [262153, 261990, 25]-code), using
- OA 12-folding and stacking [i] based on linear OA(4163, 262152, F4, 24) (dual of [262152, 261989, 25]-code), using
(139, 163, 119428)-Net over F4 — Digital
Digital (139, 163, 119428)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(4163, 119428, F4, 2, 24) (dual of [(119428, 2), 238693, 25]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(4163, 131076, F4, 2, 24) (dual of [(131076, 2), 261989, 25]-NRT-code), using
- OOA 2-folding [i] based on linear OA(4163, 262152, F4, 24) (dual of [262152, 261989, 25]-code), using
- discarding factors / shortening the dual code based on linear OA(4163, 262153, F4, 24) (dual of [262153, 261990, 25]-code), using
- 1 times truncation [i] based on linear OA(4164, 262154, F4, 25) (dual of [262154, 261990, 26]-code), using
- construction X applied to Ce(24) ⊂ Ce(22) [i] based on
- linear OA(4163, 262144, F4, 25) (dual of [262144, 261981, 26]-code), using an extension Ce(24) of the primitive narrow-sense BCH-code C(I) with length 262143 = 49−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [i]
- linear OA(4154, 262144, F4, 23) (dual of [262144, 261990, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 262143 = 49−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(41, 10, F4, 1) (dual of [10, 9, 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
- construction X applied to Ce(24) ⊂ Ce(22) [i] based on
- 1 times truncation [i] based on linear OA(4164, 262154, F4, 25) (dual of [262154, 261990, 26]-code), using
- discarding factors / shortening the dual code based on linear OA(4163, 262153, F4, 24) (dual of [262153, 261990, 25]-code), using
- OOA 2-folding [i] based on linear OA(4163, 262152, F4, 24) (dual of [262152, 261989, 25]-code), using
- discarding factors / shortening the dual code based on linear OOA(4163, 131076, F4, 2, 24) (dual of [(131076, 2), 261989, 25]-NRT-code), using
(139, 163, large)-Net in Base 4 — Upper bound on s
There is no (139, 163, large)-net in base 4, because
- 22 times m-reduction [i] would yield (139, 141, large)-net in base 4, but