Best Known (51, 63, s)-Nets in Base 4
(51, 63, 2730)-Net over F4 — Constructive and digital
Digital (51, 63, 2730)-net over F4, using
- net defined by OOA [i] based on linear OOA(463, 2730, F4, 12, 12) (dual of [(2730, 12), 32697, 13]-NRT-code), using
- OA 6-folding and stacking [i] based on linear OA(463, 16380, F4, 12) (dual of [16380, 16317, 13]-code), using
- discarding factors / shortening the dual code based on linear OA(463, 16383, F4, 12) (dual of [16383, 16320, 13]-code), using
- 1 times truncation [i] based on linear OA(464, 16384, F4, 13) (dual of [16384, 16320, 14]-code), using
- an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- 1 times truncation [i] based on linear OA(464, 16384, F4, 13) (dual of [16384, 16320, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(463, 16383, F4, 12) (dual of [16383, 16320, 13]-code), using
- OA 6-folding and stacking [i] based on linear OA(463, 16380, F4, 12) (dual of [16380, 16317, 13]-code), using
(51, 63, 8191)-Net over F4 — Digital
Digital (51, 63, 8191)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(463, 8191, F4, 2, 12) (dual of [(8191, 2), 16319, 13]-NRT-code), using
- OOA 2-folding [i] based on linear OA(463, 16382, F4, 12) (dual of [16382, 16319, 13]-code), using
- discarding factors / shortening the dual code based on linear OA(463, 16383, F4, 12) (dual of [16383, 16320, 13]-code), using
- 1 times truncation [i] based on linear OA(464, 16384, F4, 13) (dual of [16384, 16320, 14]-code), using
- an extension Ce(12) of the primitive narrow-sense BCH-code C(I) with length 16383 = 47−1, defining interval I = [1,12], and designed minimum distance d ≥ |I|+1 = 13 [i]
- 1 times truncation [i] based on linear OA(464, 16384, F4, 13) (dual of [16384, 16320, 14]-code), using
- discarding factors / shortening the dual code based on linear OA(463, 16383, F4, 12) (dual of [16383, 16320, 13]-code), using
- OOA 2-folding [i] based on linear OA(463, 16382, F4, 12) (dual of [16382, 16319, 13]-code), using
(51, 63, 2092810)-Net in Base 4 — Upper bound on s
There is no (51, 63, 2092811)-net in base 4, because
- the generalized Rao bound for nets shows that 4m ≥ 85 070834 080808 801744 779351 189913 449090 > 463 [i]