Best Known (187−34, 187, s)-Nets in Base 2
(187−34, 187, 320)-Net over F2 — Constructive and digital
Digital (153, 187, 320)-net over F2, using
- 22 times duplication [i] based on digital (151, 185, 320)-net over F2, using
- trace code for nets [i] based on digital (3, 37, 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, 37, 64)-net over F32, using
(187−34, 187, 733)-Net over F2 — Digital
Digital (153, 187, 733)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2187, 733, F2, 2, 34) (dual of [(733, 2), 1279, 35]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2187, 1023, F2, 2, 34) (dual of [(1023, 2), 1859, 35]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2187, 2046, F2, 34) (dual of [2046, 1859, 35]-code), using
- discarding factors / shortening the dual code based on linear OA(2187, 2047, F2, 34) (dual of [2047, 1860, 35]-code), using
- 1 times truncation [i] based on linear OA(2188, 2048, F2, 35) (dual of [2048, 1860, 36]-code), using
- an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 2047 = 211−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- 1 times truncation [i] based on linear OA(2188, 2048, F2, 35) (dual of [2048, 1860, 36]-code), using
- discarding factors / shortening the dual code based on linear OA(2187, 2047, F2, 34) (dual of [2047, 1860, 35]-code), using
- OOA 2-folding [i] based on linear OA(2187, 2046, F2, 34) (dual of [2046, 1859, 35]-code), using
- discarding factors / shortening the dual code based on linear OOA(2187, 1023, F2, 2, 34) (dual of [(1023, 2), 1859, 35]-NRT-code), using
(187−34, 187, 14673)-Net in Base 2 — Upper bound on s
There is no (153, 187, 14674)-net in base 2, because
- the generalized Rao bound for nets shows that 2m ≥ 196 252057 262980 641795 530770 967938 455213 785102 021213 356119 > 2187 [i]