Best Known (195−33, 195, s)-Nets in Base 4
(195−33, 195, 4096)-Net over F4 — Constructive and digital
Digital (162, 195, 4096)-net over F4, using
- 42 times duplication [i] based on digital (160, 193, 4096)-net over F4, using
- net defined by OOA [i] based on linear OOA(4193, 4096, F4, 33, 33) (dual of [(4096, 33), 134975, 34]-NRT-code), using
- OOA 16-folding and stacking with additional row [i] based on linear OA(4193, 65537, F4, 33) (dual of [65537, 65344, 34]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 65537 | 416−1, defining interval I = [0,16], and minimum distance d ≥ |{−16,−15,…,16}|+1 = 34 (BCH-bound) [i]
- OOA 16-folding and stacking with additional row [i] based on linear OA(4193, 65537, F4, 33) (dual of [65537, 65344, 34]-code), using
- net defined by OOA [i] based on linear OOA(4193, 4096, F4, 33, 33) (dual of [(4096, 33), 134975, 34]-NRT-code), using
(195−33, 195, 29962)-Net over F4 — Digital
Digital (162, 195, 29962)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(4195, 29962, F4, 2, 33) (dual of [(29962, 2), 59729, 34]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(4195, 32773, F4, 2, 33) (dual of [(32773, 2), 65351, 34]-NRT-code), using
- OOA 2-folding [i] based on linear OA(4195, 65546, F4, 33) (dual of [65546, 65351, 34]-code), using
- discarding factors / shortening the dual code based on linear OA(4195, 65547, F4, 33) (dual of [65547, 65352, 34]-code), using
- construction XX applied to Ce(32) ⊂ Ce(30) ⊂ Ce(29) [i] based on
- linear OA(4193, 65536, F4, 33) (dual of [65536, 65343, 34]-code), using an extension Ce(32) of the primitive narrow-sense BCH-code C(I) with length 65535 = 48−1, defining interval I = [1,32], and designed minimum distance d ≥ |I|+1 = 33 [i]
- linear OA(4185, 65536, F4, 31) (dual of [65536, 65351, 32]-code), using an extension Ce(30) of the primitive narrow-sense BCH-code C(I) with length 65535 = 48−1, defining interval I = [1,30], and designed minimum distance d ≥ |I|+1 = 31 [i]
- linear OA(4177, 65536, F4, 30) (dual of [65536, 65359, 31]-code), using an extension Ce(29) of the primitive narrow-sense BCH-code C(I) with length 65535 = 48−1, defining interval I = [1,29], and designed minimum distance d ≥ |I|+1 = 30 [i]
- linear OA(41, 10, F4, 1) (dual of [10, 9, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(41, s, F4, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- linear OA(40, 1, F4, 0) (dual of [1, 1, 1]-code), using
- dual of repetition code with length 1 [i]
- construction XX applied to Ce(32) ⊂ Ce(30) ⊂ Ce(29) [i] based on
- discarding factors / shortening the dual code based on linear OA(4195, 65547, F4, 33) (dual of [65547, 65352, 34]-code), using
- OOA 2-folding [i] based on linear OA(4195, 65546, F4, 33) (dual of [65546, 65351, 34]-code), using
- discarding factors / shortening the dual code based on linear OOA(4195, 32773, F4, 2, 33) (dual of [(32773, 2), 65351, 34]-NRT-code), using
(195−33, 195, large)-Net in Base 4 — Upper bound on s
There is no (162, 195, large)-net in base 4, because
- 31 times m-reduction [i] would yield (162, 164, large)-net in base 4, but