Best Known (121−23, 121, s)-Nets in Base 2
(121−23, 121, 260)-Net over F2 — Constructive and digital
Digital (98, 121, 260)-net over F2, using
- 21 times duplication [i] based on digital (97, 120, 260)-net over F2, using
- t-expansion [i] based on digital (96, 120, 260)-net over F2, using
- trace code for nets [i] based on digital (6, 30, 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
- trace code for nets [i] based on digital (6, 30, 65)-net over F16, using
- t-expansion [i] based on digital (96, 120, 260)-net over F2, using
(121−23, 121, 485)-Net over F2 — Digital
Digital (98, 121, 485)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2121, 485, F2, 2, 23) (dual of [(485, 2), 849, 24]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2121, 532, F2, 2, 23) (dual of [(532, 2), 943, 24]-NRT-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(2119, 531, F2, 2, 23) (dual of [(531, 2), 943, 24]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2119, 1062, F2, 23) (dual of [1062, 943, 24]-code), using
- adding a parity check bit [i] based on linear OA(2118, 1061, F2, 22) (dual of [1061, 943, 23]-code), using
- construction XX applied to C1 = C([1019,16]), C2 = C([1,18]), C3 = C1 + C2 = C([1,16]), and C∩ = C1 ∩ C2 = C([1019,18]) [i] based on
- linear OA(2101, 1023, F2, 21) (dual of [1023, 922, 22]-code), using the primitive BCH-code C(I) with length 1023 = 210−1, defining interval I = {−4,−3,…,16}, and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(290, 1023, F2, 18) (dual of [1023, 933, 19]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- 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 = {−4,−3,…,18}, and designed minimum distance d ≥ |I|+1 = 24 [i]
- linear OA(280, 1023, F2, 16) (dual of [1023, 943, 17]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(26, 27, F2, 3) (dual of [27, 21, 4]-code or 27-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
- 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
- construction XX applied to C1 = C([1019,16]), C2 = C([1,18]), C3 = C1 + C2 = C([1,16]), and C∩ = C1 ∩ C2 = C([1019,18]) [i] based on
- adding a parity check bit [i] based on linear OA(2118, 1061, F2, 22) (dual of [1061, 943, 23]-code), using
- OOA 2-folding [i] based on linear OA(2119, 1062, F2, 23) (dual of [1062, 943, 24]-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(2119, 531, F2, 2, 23) (dual of [(531, 2), 943, 24]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2121, 532, F2, 2, 23) (dual of [(532, 2), 943, 24]-NRT-code), using
(121−23, 121, 9424)-Net in Base 2 — Upper bound on s
There is no (98, 121, 9425)-net in base 2, because
- 1 times m-reduction [i] would yield (98, 120, 9425)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 1 330565 007822 400407 160765 114799 456176 > 2120 [i]