Best Known (144−28, 144, s)-Nets in Base 2
(144−28, 144, 260)-Net over F2 — Constructive and digital
Digital (116, 144, 260)-net over F2, using
- t-expansion [i] based on digital (114, 144, 260)-net over F2, using
- trace code for nets [i] based on digital (6, 36, 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, 36, 65)-net over F16, using
(144−28, 144, 487)-Net over F2 — Digital
Digital (116, 144, 487)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2144, 487, F2, 2, 28) (dual of [(487, 2), 830, 29]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2144, 523, F2, 2, 28) (dual of [(523, 2), 902, 29]-NRT-code), using
- strength reduction [i] based on linear OOA(2144, 523, F2, 2, 29) (dual of [(523, 2), 902, 30]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2144, 1046, F2, 29) (dual of [1046, 902, 30]-code), using
- discarding factors / shortening the dual code based on linear OA(2144, 1047, F2, 29) (dual of [1047, 903, 30]-code), using
- adding a parity check bit [i] based on linear OA(2143, 1046, F2, 28) (dual of [1046, 903, 29]-code), using
- construction XX applied to C1 = C([1021,24]), C2 = C([1,26]), C3 = C1 + C2 = C([1,24]), and C∩ = C1 ∩ C2 = C([1021,26]) [i] based on
- linear OA(2131, 1023, F2, 27) (dual of [1023, 892, 28]-code), using the primitive BCH-code C(I) with length 1023 = 210−1, defining interval I = {−2,−1,…,24}, and designed minimum distance d ≥ |I|+1 = 28 [i]
- linear OA(2130, 1023, F2, 26) (dual of [1023, 893, 27]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2141, 1023, F2, 29) (dual of [1023, 882, 30]-code), using the primitive BCH-code C(I) with length 1023 = 210−1, defining interval I = {−2,−1,…,26}, and designed minimum distance d ≥ |I|+1 = 30 [i]
- linear OA(2120, 1023, F2, 24) (dual of [1023, 903, 25]-code), using the primitive narrow-sense BCH-code C(I) with length 1023 = 210−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [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([1021,24]), C2 = C([1,26]), C3 = C1 + C2 = C([1,24]), and C∩ = C1 ∩ C2 = C([1021,26]) [i] based on
- adding a parity check bit [i] based on linear OA(2143, 1046, F2, 28) (dual of [1046, 903, 29]-code), using
- discarding factors / shortening the dual code based on linear OA(2144, 1047, F2, 29) (dual of [1047, 903, 30]-code), using
- OOA 2-folding [i] based on linear OA(2144, 1046, F2, 29) (dual of [1046, 902, 30]-code), using
- strength reduction [i] based on linear OOA(2144, 523, F2, 2, 29) (dual of [(523, 2), 902, 30]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2144, 523, F2, 2, 28) (dual of [(523, 2), 902, 29]-NRT-code), using
(144−28, 144, 7526)-Net in Base 2 — Upper bound on s
There is no (116, 144, 7527)-net in base 2, because
- the generalized Rao bound for nets shows that 2m ≥ 22 326214 319442 185705 335568 572637 633064 665612 > 2144 [i]