Best Known (124−25, 124, s)-Nets in Base 2
(124−25, 124, 260)-Net over F2 — Constructive and digital
Digital (99, 124, 260)-net over F2, using
- trace code for nets [i] based on digital (6, 31, 65)-net over F16, using
- net from sequence [i] based on digital (6, 64)-sequence over F16, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F16 with g(F) = 6 and N(F) ≥ 65, using
- the Hermitian function field over F16 [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F16 with g(F) = 6 and N(F) ≥ 65, using
- net from sequence [i] based on digital (6, 64)-sequence over F16, using
(124−25, 124, 392)-Net over F2 — Digital
Digital (99, 124, 392)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2124, 392, F2, 2, 25) (dual of [(392, 2), 660, 26]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2124, 523, F2, 2, 25) (dual of [(523, 2), 922, 26]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2124, 1046, F2, 25) (dual of [1046, 922, 26]-code), using
- discarding factors / shortening the dual code based on linear OA(2124, 1047, F2, 25) (dual of [1047, 923, 26]-code), using
- adding a parity check bit [i] based on linear OA(2123, 1046, F2, 24) (dual of [1046, 923, 25]-code), using
- construction XX applied to C1 = C([1021,20]), C2 = C([1,22]), C3 = C1 + C2 = C([1,20]), and C∩ = C1 ∩ C2 = C([1021,22]) [i] based on
- linear OA(2111, 1023, F2, 23) (dual of [1023, 912, 24]-code), using the primitive BCH-code C(I) with length 1023 = 210−1, defining interval I = {−2,−1,…,20}, and designed minimum distance d ≥ |I|+1 = 24 [i]
- linear OA(2110, 1023, F2, 22) (dual of [1023, 913, 23]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(2121, 1023, F2, 25) (dual of [1023, 902, 26]-code), using the primitive BCH-code C(I) with length 1023 = 210−1, defining interval I = {−2,−1,…,22}, and designed minimum distance d ≥ |I|+1 = 26 [i]
- linear OA(2100, 1023, F2, 20) (dual of [1023, 923, 21]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- linear OA(21, 12, F2, 1) (dual of [12, 11, 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, 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 (see above)
- construction XX applied to C1 = C([1021,20]), C2 = C([1,22]), C3 = C1 + C2 = C([1,20]), and C∩ = C1 ∩ C2 = C([1021,22]) [i] based on
- adding a parity check bit [i] based on linear OA(2123, 1046, F2, 24) (dual of [1046, 923, 25]-code), using
- discarding factors / shortening the dual code based on linear OA(2124, 1047, F2, 25) (dual of [1047, 923, 26]-code), using
- OOA 2-folding [i] based on linear OA(2124, 1046, F2, 25) (dual of [1046, 922, 26]-code), using
- discarding factors / shortening the dual code based on linear OOA(2124, 523, F2, 2, 25) (dual of [(523, 2), 922, 26]-NRT-code), using
(124−25, 124, 6423)-Net in Base 2 — Upper bound on s
There is no (99, 124, 6424)-net in base 2, because
- 1 times m-reduction [i] would yield (99, 123, 6424)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 10 653440 076574 621805 322491 864578 959214 > 2123 [i]