Best Known (202, 237, s)-Nets in Base 2
(202, 237, 624)-Net over F2 — Constructive and digital
Digital (202, 237, 624)-net over F2, using
- 23 times duplication [i] based on digital (199, 234, 624)-net over F2, using
- t-expansion [i] based on digital (198, 234, 624)-net over F2, using
- trace code for nets [i] based on digital (3, 39, 104)-net over F64, using
- net from sequence [i] based on digital (3, 103)-sequence over F64, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F64 with g(F) = 3 and N(F) ≥ 104, using
- net from sequence [i] based on digital (3, 103)-sequence over F64, using
- trace code for nets [i] based on digital (3, 39, 104)-net over F64, using
- t-expansion [i] based on digital (198, 234, 624)-net over F2, using
(202, 237, 2279)-Net over F2 — Digital
Digital (202, 237, 2279)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2237, 2279, F2, 3, 35) (dual of [(2279, 3), 6600, 36]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2237, 2748, F2, 3, 35) (dual of [(2748, 3), 8007, 36]-NRT-code), using
- 22 times duplication [i] based on linear OOA(2235, 2748, F2, 3, 35) (dual of [(2748, 3), 8009, 36]-NRT-code), using
- OOA 3-folding [i] based on linear OA(2235, 8244, F2, 35) (dual of [8244, 8009, 36]-code), using
- construction X applied to Ce(34) ⊂ Ce(28) [i] based on
- linear OA(2222, 8192, F2, 35) (dual of [8192, 7970, 36]-code), using an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 8191 = 213−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- linear OA(2183, 8192, F2, 29) (dual of [8192, 8009, 30]-code), using an extension Ce(28) of the primitive narrow-sense BCH-code C(I) with length 8191 = 213−1, defining interval I = [1,28], and designed minimum distance d ≥ |I|+1 = 29 [i]
- linear OA(213, 52, F2, 5) (dual of [52, 39, 6]-code), using
- discarding factors / shortening the dual code based on linear OA(213, 63, F2, 5) (dual of [63, 50, 6]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 63 = 26−1, defining interval I = [0,3], and designed minimum distance d ≥ |I|+1 = 6 [i]
- discarding factors / shortening the dual code based on linear OA(213, 63, F2, 5) (dual of [63, 50, 6]-code), using
- construction X applied to Ce(34) ⊂ Ce(28) [i] based on
- OOA 3-folding [i] based on linear OA(2235, 8244, F2, 35) (dual of [8244, 8009, 36]-code), using
- 22 times duplication [i] based on linear OOA(2235, 2748, F2, 3, 35) (dual of [(2748, 3), 8009, 36]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2237, 2748, F2, 3, 35) (dual of [(2748, 3), 8007, 36]-NRT-code), using
(202, 237, 108355)-Net in Base 2 — Upper bound on s
There is no (202, 237, 108356)-net in base 2, because
- 1 times m-reduction [i] would yield (202, 236, 108356)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 110442 167414 540414 983787 397141 629171 427217 689589 342986 771915 740014 997180 > 2236 [i]