Best Known (5, 11, s)-Nets in Base 25
(5, 11, 209)-Net over F25 — Constructive and digital
Digital (5, 11, 209)-net over F25, using
- net defined by OOA [i] based on linear OOA(2511, 209, F25, 6, 6) (dual of [(209, 6), 1243, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(2511, 627, F25, 6) (dual of [627, 616, 7]-code), using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- linear OA(2511, 625, F25, 6) (dual of [625, 614, 7]-code), using an extension Ce(5) of the primitive narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [1,5], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(259, 625, F25, 5) (dual of [625, 616, 6]-code), using an extension Ce(4) of the primitive narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [1,4], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(250, 2, F25, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(250, s, F25, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(5) ⊂ Ce(4) [i] based on
- OA 3-folding and stacking [i] based on linear OA(2511, 627, F25, 6) (dual of [627, 616, 7]-code), using
(5, 11, 314)-Net over F25 — Digital
Digital (5, 11, 314)-net over F25, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2511, 314, F25, 2, 6) (dual of [(314, 2), 617, 7]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2511, 628, F25, 6) (dual of [628, 617, 7]-code), using
- construction XX applied to C1 = C([623,3]), C2 = C([0,4]), C3 = C1 + C2 = C([0,3]), and C∩ = C1 ∩ C2 = C([623,4]) [i] based on
- linear OA(259, 624, F25, 5) (dual of [624, 615, 6]-code), using the primitive BCH-code C(I) with length 624 = 252−1, defining interval I = {−1,0,1,2,3}, and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(259, 624, F25, 5) (dual of [624, 615, 6]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [0,4], and designed minimum distance d ≥ |I|+1 = 6 [i]
- linear OA(2511, 624, F25, 6) (dual of [624, 613, 7]-code), using the primitive BCH-code C(I) with length 624 = 252−1, defining interval I = {−1,0,…,4}, and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(257, 624, F25, 4) (dual of [624, 617, 5]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [0,3], and designed minimum distance d ≥ |I|+1 = 5 [i]
- linear OA(250, 2, F25, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(250, s, F25, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- linear OA(250, 2, F25, 0) (dual of [2, 2, 1]-code) (see above)
- construction XX applied to C1 = C([623,3]), C2 = C([0,4]), C3 = C1 + C2 = C([0,3]), and C∩ = C1 ∩ C2 = C([623,4]) [i] based on
- OOA 2-folding [i] based on linear OA(2511, 628, F25, 6) (dual of [628, 617, 7]-code), using
(5, 11, 10113)-Net in Base 25 — Upper bound on s
There is no (5, 11, 10114)-net in base 25, because
- the generalized Rao bound for nets shows that 25m ≥ 2384 493983 406289 > 2511 [i]