Best Known (212, 247, s)-Nets in Base 2
(212, 247, 965)-Net over F2 — Constructive and digital
Digital (212, 247, 965)-net over F2, using
- 22 times duplication [i] based on digital (210, 245, 965)-net over F2, using
- net defined by OOA [i] based on linear OOA(2245, 965, F2, 35, 35) (dual of [(965, 35), 33530, 36]-NRT-code), using
- OOA 17-folding and stacking with additional row [i] based on linear OA(2245, 16406, F2, 35) (dual of [16406, 16161, 36]-code), using
- discarding factors / shortening the dual code based on linear OA(2245, 16416, F2, 35) (dual of [16416, 16171, 36]-code), using
- construction X applied to Ce(34) ⊂ Ce(30) [i] based on
- linear OA(2239, 16384, F2, 35) (dual of [16384, 16145, 36]-code), using an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- linear OA(2211, 16384, F2, 31) (dual of [16384, 16173, 32]-code), using an extension Ce(30) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,30], and designed minimum distance d ≥ |I|+1 = 31 [i]
- linear OA(26, 32, F2, 3) (dual of [32, 26, 4]-code or 32-cap in PG(5,2)), using
- construction X applied to Ce(34) ⊂ Ce(30) [i] based on
- discarding factors / shortening the dual code based on linear OA(2245, 16416, F2, 35) (dual of [16416, 16171, 36]-code), using
- OOA 17-folding and stacking with additional row [i] based on linear OA(2245, 16406, F2, 35) (dual of [16406, 16161, 36]-code), using
- net defined by OOA [i] based on linear OOA(2245, 965, F2, 35, 35) (dual of [(965, 35), 33530, 36]-NRT-code), using
(212, 247, 3284)-Net over F2 — Digital
Digital (212, 247, 3284)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2247, 3284, F2, 5, 35) (dual of [(3284, 5), 16173, 36]-NRT-code), using
- OOA 5-folding [i] based on linear OA(2247, 16420, F2, 35) (dual of [16420, 16173, 36]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2246, 16419, F2, 35) (dual of [16419, 16173, 36]-code), using
- construction X applied to Ce(34) ⊂ Ce(30) [i] based on
- linear OA(2239, 16384, F2, 35) (dual of [16384, 16145, 36]-code), using an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- linear OA(2211, 16384, F2, 31) (dual of [16384, 16173, 32]-code), using an extension Ce(30) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,30], and designed minimum distance d ≥ |I|+1 = 31 [i]
- linear OA(27, 35, F2, 3) (dual of [35, 28, 4]-code or 35-cap in PG(6,2)), using
- discarding factors / shortening the dual code based on linear OA(27, 63, F2, 3) (dual of [63, 56, 4]-code or 63-cap in PG(6,2)), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 63 = 26−1, defining interval I = [0,1], and designed minimum distance d ≥ |I|+1 = 4 [i]
- discarding factors / shortening the dual code based on linear OA(27, 63, F2, 3) (dual of [63, 56, 4]-code or 63-cap in PG(6,2)), using
- construction X applied to Ce(34) ⊂ Ce(30) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(2246, 16419, F2, 35) (dual of [16419, 16173, 36]-code), using
- OOA 5-folding [i] based on linear OA(2247, 16420, F2, 35) (dual of [16420, 16173, 36]-code), using
(212, 247, 162914)-Net in Base 2 — Upper bound on s
There is no (212, 247, 162915)-net in base 2, because
- 1 times m-reduction [i] would yield (212, 246, 162915)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 113 084350 874223 705861 866328 873556 700453 053769 645393 988379 955901 344907 681128 > 2246 [i]