Best Known (211, 211+39, s)-Nets in Base 2
(211, 211+39, 600)-Net over F2 — Constructive and digital
Digital (211, 250, 600)-net over F2, using
- trace code for nets [i] based on digital (11, 50, 120)-net over F32, using
- net from sequence [i] based on digital (11, 119)-sequence over F32, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F32 with g(F) = 11 and N(F) ≥ 120, using
- net from sequence [i] based on digital (11, 119)-sequence over F32, using
(211, 211+39, 1990)-Net over F2 — Digital
Digital (211, 250, 1990)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2250, 1990, F2, 4, 39) (dual of [(1990, 4), 7710, 40]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2250, 2051, F2, 4, 39) (dual of [(2051, 4), 7954, 40]-NRT-code), using
- 21 times duplication [i] based on linear OOA(2249, 2051, F2, 4, 39) (dual of [(2051, 4), 7955, 40]-NRT-code), using
- OOA 4-folding [i] based on linear OA(2249, 8204, F2, 39) (dual of [8204, 7955, 40]-code), using
- discarding factors / shortening the dual code based on linear OA(2249, 8206, F2, 39) (dual of [8206, 7957, 40]-code), using
- construction X applied to Ce(38) ⊂ Ce(36) [i] based on
- linear OA(2248, 8192, F2, 39) (dual of [8192, 7944, 40]-code), using an extension Ce(38) of the primitive narrow-sense BCH-code C(I) with length 8191 = 213−1, defining interval I = [1,38], and designed minimum distance d ≥ |I|+1 = 39 [i]
- linear OA(2235, 8192, F2, 37) (dual of [8192, 7957, 38]-code), using an extension Ce(36) of the primitive narrow-sense BCH-code C(I) with length 8191 = 213−1, defining interval I = [1,36], and designed minimum distance d ≥ |I|+1 = 37 [i]
- linear OA(21, 14, F2, 1) (dual of [14, 13, 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(38) ⊂ Ce(36) [i] based on
- discarding factors / shortening the dual code based on linear OA(2249, 8206, F2, 39) (dual of [8206, 7957, 40]-code), using
- OOA 4-folding [i] based on linear OA(2249, 8204, F2, 39) (dual of [8204, 7955, 40]-code), using
- 21 times duplication [i] based on linear OOA(2249, 2051, F2, 4, 39) (dual of [(2051, 4), 7955, 40]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2250, 2051, F2, 4, 39) (dual of [(2051, 4), 7954, 40]-NRT-code), using
(211, 211+39, 69842)-Net in Base 2 — Upper bound on s
There is no (211, 250, 69843)-net in base 2, because
- 1 times m-reduction [i] would yield (211, 249, 69843)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 904 788341 163739 326306 340107 612430 475661 817311 868141 285129 963910 459842 952542 > 2249 [i]