Best Known (161−34, 161, s)-Nets in Base 4
(161−34, 161, 1052)-Net over F4 — Constructive and digital
Digital (127, 161, 1052)-net over F4, using
- 41 times duplication [i] based on digital (126, 160, 1052)-net over F4, using
- trace code for nets [i] based on digital (6, 40, 263)-net over F256, using
- net from sequence [i] based on digital (6, 262)-sequence over F256, using
- trace code for nets [i] based on digital (6, 40, 263)-net over F256, using
(161−34, 161, 4200)-Net over F4 — Digital
Digital (127, 161, 4200)-net over F4, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(4161, 4200, F4, 34) (dual of [4200, 4039, 35]-code), using
- 88 step Varšamov–Edel lengthening with (ri) = (3, 1, 0, 1, 0, 0, 1, 4 times 0, 1, 7 times 0, 1, 13 times 0, 1, 20 times 0, 1, 33 times 0) [i] based on linear OA(4151, 4102, F4, 34) (dual of [4102, 3951, 35]-code), using
- construction X applied to Ce(33) ⊂ Ce(32) [i] based on
- linear OA(4151, 4096, F4, 34) (dual of [4096, 3945, 35]-code), using an extension Ce(33) of the primitive narrow-sense BCH-code C(I) with length 4095 = 46−1, defining interval I = [1,33], and designed minimum distance d ≥ |I|+1 = 34 [i]
- linear OA(4145, 4096, F4, 33) (dual of [4096, 3951, 34]-code), using an extension Ce(32) of the primitive narrow-sense BCH-code C(I) with length 4095 = 46−1, defining interval I = [1,32], and designed minimum distance d ≥ |I|+1 = 33 [i]
- linear OA(40, 6, F4, 0) (dual of [6, 6, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(40, s, F4, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(33) ⊂ Ce(32) [i] based on
- 88 step Varšamov–Edel lengthening with (ri) = (3, 1, 0, 1, 0, 0, 1, 4 times 0, 1, 7 times 0, 1, 13 times 0, 1, 20 times 0, 1, 33 times 0) [i] based on linear OA(4151, 4102, F4, 34) (dual of [4102, 3951, 35]-code), using
(161−34, 161, 1204151)-Net in Base 4 — Upper bound on s
There is no (127, 161, 1204152)-net in base 4, because
- the generalized Rao bound for nets shows that 4m ≥ 8 543953 995491 133289 182847 566574 779835 927418 252680 825613 463376 058355 977849 884135 062835 957984 542955 > 4161 [i]