Best Known (175−86, 175, s)-Nets in Base 2
(175−86, 175, 52)-Net over F2 — Constructive and digital
Digital (89, 175, 52)-net over F2, using
- t-expansion [i] based on digital (85, 175, 52)-net over F2, using
- net from sequence [i] based on digital (85, 51)-sequence over F2, using
- Niederreiter–Xing sequence construction III based on the algebraic function field F/F2 with g(F) = 69, N(F) = 48, 1 place with degree 2, and 3 places with degree 6 [i] based on function field F/F2 with g(F) = 69 and N(F) ≥ 48, using an explicitly constructive algebraic function field [i]
- net from sequence [i] based on digital (85, 51)-sequence over F2, using
(175−86, 175, 57)-Net over F2 — Digital
Digital (89, 175, 57)-net over F2, using
- t-expansion [i] based on digital (83, 175, 57)-net over F2, using
- net from sequence [i] based on digital (83, 56)-sequence over F2, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F2 with g(F) = 83 and N(F) ≥ 57, using
- net from sequence [i] based on digital (83, 56)-sequence over F2, using
(175−86, 175, 194)-Net over F2 — Upper bound on s (digital)
There is no digital (89, 175, 195)-net over F2, because
- 4 times m-reduction [i] would yield digital (89, 171, 195)-net over F2, but
- extracting embedded orthogonal array [i] would yield linear OA(2171, 195, F2, 82) (dual of [195, 24, 83]-code), but
- 1 times code embedding in larger space [i] would yield linear OA(2172, 196, F2, 82) (dual of [196, 24, 83]-code), but
- adding a parity check bit [i] would yield linear OA(2173, 197, F2, 83) (dual of [197, 24, 84]-code), but
- 1 times code embedding in larger space [i] would yield linear OA(2172, 196, F2, 82) (dual of [196, 24, 83]-code), but
- extracting embedded orthogonal array [i] would yield linear OA(2171, 195, F2, 82) (dual of [195, 24, 83]-code), but
(175−86, 175, 225)-Net in Base 2 — Upper bound on s
There is no (89, 175, 226)-net in base 2, because
- the generalized Rao bound for nets shows that 2m ≥ 52437 415713 528583 804719 144094 874280 648348 577846 325184 > 2175 [i]