Best Known (128, 128+16, s)-Nets in Base 4
(128, 128+16, 1048575)-Net over F4 — Constructive and digital
Digital (128, 144, 1048575)-net over F4, using
- net defined by OOA [i] based on linear OOA(4144, 1048575, F4, 16, 16) (dual of [(1048575, 16), 16777056, 17]-NRT-code), using
- OA 8-folding and stacking [i] based on linear OA(4144, 8388600, F4, 16) (dual of [8388600, 8388456, 17]-code), using
- discarding factors / shortening the dual code based on linear OA(4144, large, F4, 16) (dual of [large, large−144, 17]-code), using
- the primitive narrow-sense BCH-code C(I) with length 16777215 = 412−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- discarding factors / shortening the dual code based on linear OA(4144, large, F4, 16) (dual of [large, large−144, 17]-code), using
- OA 8-folding and stacking [i] based on linear OA(4144, 8388600, F4, 16) (dual of [8388600, 8388456, 17]-code), using
(128, 128+16, 4194301)-Net over F4 — Digital
Digital (128, 144, 4194301)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(4144, 4194301, F4, 2, 16) (dual of [(4194301, 2), 8388458, 17]-NRT-code), using
- OOA 2-folding [i] based on linear OA(4144, 8388602, F4, 16) (dual of [8388602, 8388458, 17]-code), using
- discarding factors / shortening the dual code based on linear OA(4144, large, F4, 16) (dual of [large, large−144, 17]-code), using
- the primitive narrow-sense BCH-code C(I) with length 16777215 = 412−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- discarding factors / shortening the dual code based on linear OA(4144, large, F4, 16) (dual of [large, large−144, 17]-code), using
- OOA 2-folding [i] based on linear OA(4144, 8388602, F4, 16) (dual of [8388602, 8388458, 17]-code), using
(128, 128+16, large)-Net in Base 4 — Upper bound on s
There is no (128, 144, large)-net in base 4, because
- 14 times m-reduction [i] would yield (128, 130, large)-net in base 4, but