Best Known (161, 187, s)-Nets in Base 2
(161, 187, 1261)-Net over F2 — Constructive and digital
Digital (161, 187, 1261)-net over F2, using
- 23 times duplication [i] based on digital (158, 184, 1261)-net over F2, using
- t-expansion [i] based on digital (157, 184, 1261)-net over F2, using
- net defined by OOA [i] based on linear OOA(2184, 1261, F2, 27, 27) (dual of [(1261, 27), 33863, 28]-NRT-code), using
- OOA 13-folding and stacking with additional row [i] based on linear OA(2184, 16394, F2, 27) (dual of [16394, 16210, 28]-code), using
- discarding factors / shortening the dual code based on linear OA(2184, 16399, F2, 27) (dual of [16399, 16215, 28]-code), using
- construction X applied to Ce(26) ⊂ Ce(24) [i] based on
- linear OA(2183, 16384, F2, 27) (dual of [16384, 16201, 28]-code), using an extension Ce(26) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2169, 16384, F2, 25) (dual of [16384, 16215, 26]-code), using an extension Ce(24) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [i]
- linear OA(21, 15, F2, 1) (dual of [15, 14, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(26) ⊂ Ce(24) [i] based on
- discarding factors / shortening the dual code based on linear OA(2184, 16399, F2, 27) (dual of [16399, 16215, 28]-code), using
- OOA 13-folding and stacking with additional row [i] based on linear OA(2184, 16394, F2, 27) (dual of [16394, 16210, 28]-code), using
- net defined by OOA [i] based on linear OOA(2184, 1261, F2, 27, 27) (dual of [(1261, 27), 33863, 28]-NRT-code), using
- t-expansion [i] based on digital (157, 184, 1261)-net over F2, using
(161, 187, 3615)-Net over F2 — Digital
Digital (161, 187, 3615)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2187, 3615, F2, 4, 26) (dual of [(3615, 4), 14273, 27]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2187, 4100, F2, 4, 26) (dual of [(4100, 4), 16213, 27]-NRT-code), using
- 22 times duplication [i] based on linear OOA(2185, 4100, F2, 4, 26) (dual of [(4100, 4), 16215, 27]-NRT-code), using
- OOA 4-folding [i] based on linear OA(2185, 16400, F2, 26) (dual of [16400, 16215, 27]-code), using
- 2 times code embedding in larger space [i] based on linear OA(2183, 16398, F2, 26) (dual of [16398, 16215, 27]-code), using
- 1 times truncation [i] based on linear OA(2184, 16399, F2, 27) (dual of [16399, 16215, 28]-code), using
- construction X applied to Ce(26) ⊂ Ce(24) [i] based on
- linear OA(2183, 16384, F2, 27) (dual of [16384, 16201, 28]-code), using an extension Ce(26) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,26], and designed minimum distance d ≥ |I|+1 = 27 [i]
- linear OA(2169, 16384, F2, 25) (dual of [16384, 16215, 26]-code), using an extension Ce(24) of the primitive narrow-sense BCH-code C(I) with length 16383 = 214−1, defining interval I = [1,24], and designed minimum distance d ≥ |I|+1 = 25 [i]
- linear OA(21, 15, F2, 1) (dual of [15, 14, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to Ce(26) ⊂ Ce(24) [i] based on
- 1 times truncation [i] based on linear OA(2184, 16399, F2, 27) (dual of [16399, 16215, 28]-code), using
- 2 times code embedding in larger space [i] based on linear OA(2183, 16398, F2, 26) (dual of [16398, 16215, 27]-code), using
- OOA 4-folding [i] based on linear OA(2185, 16400, F2, 26) (dual of [16400, 16215, 27]-code), using
- 22 times duplication [i] based on linear OOA(2185, 4100, F2, 4, 26) (dual of [(4100, 4), 16215, 27]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2187, 4100, F2, 4, 26) (dual of [(4100, 4), 16213, 27]-NRT-code), using
(161, 187, 121210)-Net in Base 2 — Upper bound on s
There is no (161, 187, 121211)-net in base 2, because
- the generalized Rao bound for nets shows that 2m ≥ 196 178309 626380 166230 787160 165422 739459 347818 088874 661264 > 2187 [i]