MinT - Best Known (187, 187+13, s)-Nets in Base 2

Best Known (187, 187+13, s)-Nets in Base 2

(187, 187+13, 2446674)-Net over F₂ — Constructive and digital

Digital (187, 200, 2446674)-net over F₂, using

(u,Â u+v)-construction [i] based on
1. digital (55, 61, 1048574)-net over F₂, using
  - 1 times m-reduction [i] based on digital (55, 62, 1048574)-net over F₂, using
    - net defined by OOA [i] based on linear OOA(2⁶², 1048574, F₂, 7, 7) (dual of [(1048574, 7), 7339956, 8]-NRT-code), using
      - OOA stacking with additional row [i] based on linear OOA(2⁶², 1048575, F₂, 3, 7) (dual of [(1048575, 3), 3145663, 8]-NRT-code), using
        OOAs constructed from BCH codes [i]
2. digital (126, 139, 1398100)-net over F₂, using
  - net defined by OOA [i] based on linear OOA(2¹³⁹, 1398100, F₂, 13, 13) (dual of [(1398100, 13), 18175161, 14]-NRT-code), using
    - OOA 6-folding and stacking with additional row [i] based on linear OA(2¹³⁹, 8388601, F₂, 13) (dual of [8388601, 8388462, 14]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹³⁹, large, F₂, 13) (dual of [large, large−139, 14]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 8388609Â | 2⁴⁶âˆ’1, defining interval IÂ =Â [0,6], and minimum distance dÂ â‰¥ |{−6,−5,…,6}|+1Â =Â 14 (BCH-bound) [i]

(187, 187+13, 4133984)-Net over F₂ — Digital

Digital (187, 200, 4133984)-net over F₂, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(2²⁰⁰, 4133984, F₂, 2, 13) (dual of [(4133984, 2), 8267768, 14]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2²⁰⁰, 5242876, F₂, 2, 13) (dual of [(5242876, 2), 10485552, 14]-NRT-code), using
  - (u,Â u+v)-construction [i] based on
    1. linear OOA(2⁶¹, 1048575, F₂, 2, 6) (dual of [(1048575, 2), 2097089, 7]-NRT-code), using
      - OOAs constructed from BCH codes [i]
    2. linear OOA(2¹³⁹, 4194301, F₂, 2, 13) (dual of [(4194301, 2), 8388463, 14]-NRT-code), using
      - OOA 2-folding [i] based on linear OA(2¹³⁹, 8388602, F₂, 13) (dual of [8388602, 8388463, 14]-code), using
        discarding factors / shortening the dual code based on linear OA(2¹³⁹, large, F₂, 13) (dual of [large, large−139, 14]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 8388609Â | 2⁴⁶âˆ’1, defining interval IÂ =Â [0,6], and minimum distance dÂ â‰¥ |{−6,−5,…,6}|+1Â =Â 14 (BCH-bound) [i]

(187, 187+13, large)-Net in Base 2 — Upper bound on s

There is no (187, 200, large)-net in base 2, because

11 times m-reduction [i] would yield (187, 189, large)-net in base 2, but
- mutually orthogonal hypercube bound [i]