Best Known (138, 154, s)-Nets in Base 3
(138, 154, 1048575)-Net over F3 — Constructive and digital
Digital (138, 154, 1048575)-net over F3, using
- 33 times duplication [i] based on digital (135, 151, 1048575)-net over F3, using
- net defined by OOA [i] based on linear OOA(3151, 1048575, F3, 16, 16) (dual of [(1048575, 16), 16777049, 17]-NRT-code), using
- OA 8-folding and stacking [i] based on linear OA(3151, 8388600, F3, 16) (dual of [8388600, 8388449, 17]-code), using
- discarding factors / shortening the dual code based on linear OA(3151, large, F3, 16) (dual of [large, large−151, 17]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 14348906 = 315−1, defining interval I = [0,15], and designed minimum distance d ≥ |I|+1 = 17 [i]
- discarding factors / shortening the dual code based on linear OA(3151, large, F3, 16) (dual of [large, large−151, 17]-code), using
- OA 8-folding and stacking [i] based on linear OA(3151, 8388600, F3, 16) (dual of [8388600, 8388449, 17]-code), using
- net defined by OOA [i] based on linear OOA(3151, 1048575, F3, 16, 16) (dual of [(1048575, 16), 16777049, 17]-NRT-code), using
(138, 154, 2667506)-Net over F3 — Digital
Digital (138, 154, 2667506)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(3154, 2667506, F3, 3, 16) (dual of [(2667506, 3), 8002364, 17]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3154, 2796202, F3, 3, 16) (dual of [(2796202, 3), 8388452, 17]-NRT-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(3151, 2796201, F3, 3, 16) (dual of [(2796201, 3), 8388452, 17]-NRT-code), using
- OOA 3-folding [i] based on linear OA(3151, large, F3, 16) (dual of [large, large−151, 17]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 14348906 = 315−1, defining interval I = [0,15], and designed minimum distance d ≥ |I|+1 = 17 [i]
- OOA 3-folding [i] based on linear OA(3151, large, F3, 16) (dual of [large, large−151, 17]-code), using
- 1 times NRT-code embedding in larger space [i] based on linear OOA(3151, 2796201, F3, 3, 16) (dual of [(2796201, 3), 8388452, 17]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(3154, 2796202, F3, 3, 16) (dual of [(2796202, 3), 8388452, 17]-NRT-code), using
(138, 154, large)-Net in Base 3 — Upper bound on s
There is no (138, 154, large)-net in base 3, because
- 14 times m-reduction [i] would yield (138, 140, large)-net in base 3, but