Best Known (183, 183+37, s)-Nets in Base 2
(183, 183+37, 490)-Net over F2 — Constructive and digital
Digital (183, 220, 490)-net over F2, using
- trace code for nets [i] based on digital (7, 44, 98)-net over F32, using
- net from sequence [i] based on digital (7, 97)-sequence over F32, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F32 with g(F) = 7 and N(F) ≥ 98, using
- net from sequence [i] based on digital (7, 97)-sequence over F32, using
(183, 183+37, 1208)-Net over F2 — Digital
Digital (183, 220, 1208)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2220, 1208, F2, 3, 37) (dual of [(1208, 3), 3404, 38]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2220, 1370, F2, 3, 37) (dual of [(1370, 3), 3890, 38]-NRT-code), using
- 21 times duplication [i] based on linear OOA(2219, 1370, F2, 3, 37) (dual of [(1370, 3), 3891, 38]-NRT-code), using
- OOA 3-folding [i] based on linear OA(2219, 4110, F2, 37) (dual of [4110, 3891, 38]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2218, 4109, F2, 37) (dual of [4109, 3891, 38]-code), using
- construction X applied to Ce(36) ⊂ Ce(34) [i] based on
- linear OA(2217, 4096, F2, 37) (dual of [4096, 3879, 38]-code), using an extension Ce(36) of the primitive narrow-sense BCH-code C(I) with length 4095 = 212−1, defining interval I = [1,36], and designed minimum distance d ≥ |I|+1 = 37 [i]
- linear OA(2205, 4096, F2, 35) (dual of [4096, 3891, 36]-code), using an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 4095 = 212−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- linear OA(21, 13, F2, 1) (dual of [13, 12, 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(36) ⊂ Ce(34) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(2218, 4109, F2, 37) (dual of [4109, 3891, 38]-code), using
- OOA 3-folding [i] based on linear OA(2219, 4110, F2, 37) (dual of [4110, 3891, 38]-code), using
- 21 times duplication [i] based on linear OOA(2219, 1370, F2, 3, 37) (dual of [(1370, 3), 3891, 38]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2220, 1370, F2, 3, 37) (dual of [(1370, 3), 3890, 38]-NRT-code), using
(183, 183+37, 34700)-Net in Base 2 — Upper bound on s
There is no (183, 220, 34701)-net in base 2, because
- 1 times m-reduction [i] would yield (183, 219, 34701)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 842908 182314 001226 699648 645842 927374 510456 223935 301025 744203 022864 > 2219 [i]