Best Known (127−13, 127, s)-Nets in Base 2
(127−13, 127, 349525)-Net over F2 — Constructive and digital
Digital (114, 127, 349525)-net over F2, using
- net defined by OOA [i] based on linear OOA(2127, 349525, F2, 13, 13) (dual of [(349525, 13), 4543698, 14]-NRT-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2127, 2097151, F2, 13) (dual of [2097151, 2097024, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(2127, 2097152, F2, 13) (dual of [2097152, 2097025, 14]-code), using
- an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 221−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- discarding factors / shortening the dual code based on linear OA(2127, 2097152, F2, 13) (dual of [2097152, 2097025, 14]-code), using
- OOA 6-folding and stacking with additional row [i] based on linear OA(2127, 2097151, F2, 13) (dual of [2097151, 2097024, 14]-code), using
(127−13, 127, 419430)-Net over F2 — Digital
Digital (114, 127, 419430)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2127, 419430, F2, 5, 13) (dual of [(419430, 5), 2097023, 14]-NRT-code), using
- OOA 5-folding [i] based on linear OA(2127, 2097150, F2, 13) (dual of [2097150, 2097023, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(2127, 2097152, F2, 13) (dual of [2097152, 2097025, 14]-code), using
- an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 2097151 = 221−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- discarding factors / shortening the dual code based on linear OA(2127, 2097152, F2, 13) (dual of [2097152, 2097025, 14]-code), using
- OOA 5-folding [i] based on linear OA(2127, 2097150, F2, 13) (dual of [2097150, 2097023, 14]-code), using
(127−13, 127, 6278435)-Net in Base 2 — Upper bound on s
There is no (114, 127, 6278436)-net in base 2, because
- 1 times m-reduction [i] would yield (114, 126, 6278436)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 85 070671 485522 119560 251172 936060 117288 > 2126 [i]