Best Known (173, 208, s)-Nets in Base 2
(173, 208, 380)-Net over F2 — Constructive and digital
Digital (173, 208, 380)-net over F2, using
- 2 times m-reduction [i] based on digital (173, 210, 380)-net over F2, using
- trace code for nets [i] based on digital (5, 42, 76)-net over F32, using
- net from sequence [i] based on digital (5, 75)-sequence over F32, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F32 with g(F) = 5 and N(F) ≥ 76, using
- net from sequence [i] based on digital (5, 75)-sequence over F32, using
- trace code for nets [i] based on digital (5, 42, 76)-net over F32, using
(173, 208, 1171)-Net over F2 — Digital
Digital (173, 208, 1171)-net over F2, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(2208, 1171, F2, 3, 35) (dual of [(1171, 3), 3305, 36]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2208, 1370, F2, 3, 35) (dual of [(1370, 3), 3902, 36]-NRT-code), using
- 21 times duplication [i] based on linear OOA(2207, 1370, F2, 3, 35) (dual of [(1370, 3), 3903, 36]-NRT-code), using
- OOA 3-folding [i] based on linear OA(2207, 4110, F2, 35) (dual of [4110, 3903, 36]-code), using
- 1 times code embedding in larger space [i] based on linear OA(2206, 4109, F2, 35) (dual of [4109, 3903, 36]-code), using
- construction X applied to Ce(34) ⊂ Ce(32) [i] based on
- linear OA(2205, 4096, F2, 35) (dual of [4096, 3891, 36]-code), using an extension Ce(34) of the primitive narrow-sense BCH-code C(I) with length 4095 = 212−1, defining interval I = [1,34], and designed minimum distance d ≥ |I|+1 = 35 [i]
- linear OA(2193, 4096, F2, 33) (dual of [4096, 3903, 34]-code), using an extension Ce(32) of the primitive narrow-sense BCH-code C(I) with length 4095 = 212−1, defining interval I = [1,32], and designed minimum distance d ≥ |I|+1 = 33 [i]
- linear OA(21, 13, F2, 1) (dual of [13, 12, 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(34) ⊂ Ce(32) [i] based on
- 1 times code embedding in larger space [i] based on linear OA(2206, 4109, F2, 35) (dual of [4109, 3903, 36]-code), using
- OOA 3-folding [i] based on linear OA(2207, 4110, F2, 35) (dual of [4110, 3903, 36]-code), using
- 21 times duplication [i] based on linear OOA(2207, 1370, F2, 3, 35) (dual of [(1370, 3), 3903, 36]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(2208, 1370, F2, 3, 35) (dual of [(1370, 3), 3902, 36]-NRT-code), using
(173, 208, 33197)-Net in Base 2 — Upper bound on s
There is no (173, 208, 33198)-net in base 2, because
- 1 times m-reduction [i] would yield (173, 207, 33198)-net in base 2, but
- the generalized Rao bound for nets shows that 2m ≥ 205 773749 594722 377209 579693 769949 575818 394946 522450 062818 282958 > 2207 [i]