Best Known (61, 61+17, s)-Nets in Base 2
(61, 61+17, 135)-Net over F2 — Constructive and digital
Digital (61, 78, 135)-net over F2, using
- trace code for nets [i] based on digital (9, 26, 45)-net over F8, using
- net from sequence [i] based on digital (9, 44)-sequence over F8, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F8 with g(F) = 9 and N(F) ≥ 45, using
- net from sequence [i] based on digital (9, 44)-sequence over F8, using
(61, 61+17, 241)-Net over F2 — Digital
Digital (61, 78, 241)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(278, 241, F2, 2, 17) (dual of [(241, 2), 404, 18]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(278, 267, F2, 2, 17) (dual of [(267, 2), 456, 18]-NRT-code), using
- 21 times duplication [i] based on linear OOA(277, 267, F2, 2, 17) (dual of [(267, 2), 457, 18]-NRT-code), using
- OOA 2-folding [i] based on linear OA(277, 534, F2, 17) (dual of [534, 457, 18]-code), using
- 1 times code embedding in larger space [i] based on linear OA(276, 533, F2, 17) (dual of [533, 457, 18]-code), using
- adding a parity check bit [i] based on linear OA(275, 532, F2, 16) (dual of [532, 457, 17]-code), using
- construction XX applied to C1 = C([509,12]), C2 = C([1,14]), C3 = C1 + C2 = C([1,12]), and C∩ = C1 ∩ C2 = C([509,14]) [i] based on
- linear OA(264, 511, F2, 15) (dual of [511, 447, 16]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,12}, and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(263, 511, F2, 14) (dual of [511, 448, 15]-code), using the primitive narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
- linear OA(273, 511, F2, 17) (dual of [511, 438, 18]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,14}, and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(254, 511, F2, 12) (dual of [511, 457, 13]-code), using the primitive narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- linear OA(21, 11, F2, 1) (dual of [11, 10, 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
- linear OA(21, 10, F2, 1) (dual of [10, 9, 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 (see above)
- construction XX applied to C1 = C([509,12]), C2 = C([1,14]), C3 = C1 + C2 = C([1,12]), and C∩ = C1 ∩ C2 = C([509,14]) [i] based on
- adding a parity check bit [i] based on linear OA(275, 532, F2, 16) (dual of [532, 457, 17]-code), using
- 1 times code embedding in larger space [i] based on linear OA(276, 533, F2, 17) (dual of [533, 457, 18]-code), using
- OOA 2-folding [i] based on linear OA(277, 534, F2, 17) (dual of [534, 457, 18]-code), using
- 21 times duplication [i] based on linear OOA(277, 267, F2, 2, 17) (dual of [(267, 2), 457, 18]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(278, 267, F2, 2, 17) (dual of [(267, 2), 456, 18]-NRT-code), using
(61, 61+17, 2960)-Net in Base 2 — Upper bound on s
There is no (61, 78, 2961)-net in base 2, because
- 1 times m-reduction [i] would yield (61, 77, 2961)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 151158 082720 687899 631702 > 277 [i]