Best Known (193, 236, s)-Nets in Base 2
(193, 236, 320)-Net over F2 — Constructive and digital
Digital (193, 236, 320)-net over F2, using
- 21 times duplication [i] based on digital (192, 235, 320)-net over F2, using
- t-expansion [i] based on digital (191, 235, 320)-net over F2, using
- trace code for nets [i] based on digital (3, 47, 64)-net over F32, using
- net from sequence [i] based on digital (3, 63)-sequence over F32, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F32 with g(F) = 3 and N(F) ≥ 64, using
- net from sequence [i] based on digital (3, 63)-sequence over F32, using
- trace code for nets [i] based on digital (3, 47, 64)-net over F32, using
- t-expansion [i] based on digital (191, 235, 320)-net over F2, using
(193, 236, 853)-Net over F2 — Digital
Digital (193, 236, 853)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2236, 853, F2, 2, 43) (dual of [(853, 2), 1470, 44]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2236, 1031, F2, 2, 43) (dual of [(1031, 2), 1826, 44]-NRT-code), using
- 21 times duplication [i] based on linear OOA(2235, 1031, F2, 2, 43) (dual of [(1031, 2), 1827, 44]-NRT-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(2233, 1030, F2, 2, 43) (dual of [(1030, 2), 1827, 44]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2233, 2060, F2, 43) (dual of [2060, 1827, 44]-code), using
- construction X applied to Ce(42) ⊂ Ce(40) [i] based on
- linear OA(2232, 2048, F2, 43) (dual of [2048, 1816, 44]-code), using an extension Ce(42) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,42], and designed minimum distance d ≥ |I|+1 = 43 [i]
- linear OA(2221, 2048, F2, 41) (dual of [2048, 1827, 42]-code), using an extension Ce(40) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,40], and designed minimum distance d ≥ |I|+1 = 41 [i]
- linear OA(21, 12, F2, 1) (dual of [12, 11, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(42) ⊂ Ce(40) [i] based on
- OOA 2-folding [i] based on linear OA(2233, 2060, F2, 43) (dual of [2060, 1827, 44]-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(2233, 1030, F2, 2, 43) (dual of [(1030, 2), 1827, 44]-NRT-code), using
- 21 times duplication [i] based on linear OOA(2235, 1031, F2, 2, 43) (dual of [(1031, 2), 1827, 44]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2236, 1031, F2, 2, 43) (dual of [(1031, 2), 1826, 44]-NRT-code), using
(193, 236, 20253)-Net in Base 2 — Upper bound on s
There is no (193, 236, 20254)-net in base 2, because
- 1 times m-reduction [i] would yield (193, 235, 20254)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 55248 645430 139059 321029 783640 031266 560332 145616 091890 653584 145031 066275 > 2235 [i]