Best Known (140−24, 140, s)-Nets in Base 2
(140−24, 140, 320)-Net over F2 — Constructive and digital
Digital (116, 140, 320)-net over F2, using
- t-expansion [i] based on digital (115, 140, 320)-net over F2, using
- trace code for nets [i] based on digital (3, 28, 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, 28, 64)-net over F32, using
(140−24, 140, 796)-Net over F2 — Digital
Digital (116, 140, 796)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2140, 796, F2, 2, 24) (dual of [(796, 2), 1452, 25]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2140, 1039, F2, 2, 24) (dual of [(1039, 2), 1938, 25]-NRT-code), using
- strength reduction [i] based on linear OOA(2140, 1039, F2, 2, 25) (dual of [(1039, 2), 1938, 26]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2140, 2078, F2, 25) (dual of [2078, 1938, 26]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2139, 2077, F2, 25) (dual of [2077, 1938, 26]-code), using
- construction X applied to C([0,12]) ⊂ C([0,10]) [i] based on
- linear OA(2133, 2049, F2, 25) (dual of [2049, 1916, 26]-code), using the expurgated narrow-sense BCH-code C(I) with length 2049 | 222−1, defining interval I = [0,12], and minimum distance d ≥ |{−12,−11,…,12}|+1 = 26 (BCH-bound) [i]
- linear OA(2111, 2049, F2, 21) (dual of [2049, 1938, 22]-code), using the expurgated narrow-sense BCH-code C(I) with length 2049 | 222−1, defining interval I = [0,10], and minimum distance d ≥ |{−10,−9,…,10}|+1 = 22 (BCH-bound) [i]
- linear OA(26, 28, F2, 3) (dual of [28, 22, 4]-code or 28-cap in PG(5,2)), using
- discarding factors / shortening the dual code based on linear OA(26, 32, F2, 3) (dual of [32, 26, 4]-code or 32-cap in PG(5,2)), using
- construction X applied to C([0,12]) ⊂ C([0,10]) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(2139, 2077, F2, 25) (dual of [2077, 1938, 26]-code), using
- OOA 2-folding [i] based on linear OA(2140, 2078, F2, 25) (dual of [2078, 1938, 26]-code), using
- strength reduction [i] based on linear OOA(2140, 1039, F2, 2, 25) (dual of [(1039, 2), 1938, 26]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2140, 1039, F2, 2, 24) (dual of [(1039, 2), 1938, 25]-NRT-code), using
(140−24, 140, 17176)-Net in Base 2 — Upper bound on s
There is no (116, 140, 17177)-net in base 2, because
- the generalized Rao bound for nets shows that 2m ≥ 1 394232 567211 733433 953295 965274 848378 343852 > 2140 [i]