Information on Result #731726

Linear OA(2215, 231, F2, 99) (dual of [231, 16, 100]-code), using concatenation of two codes based on
  1. linear OA(469, 77, F4, 49) (dual of [77, 8, 50]-code), using
    • construction X applied to C([0,25]) ⊂ C([0,21]) [i] based on
      1. linear OA(463, 65, F4, 51) (dual of [65, 2, 52]-code), using the expurgated narrow-sense BCH-code C(I) with length 65 | 46−1, defining interval I = [0,25], and minimum distance d ≥ |{−15,−4,7,…,15}|+1 = 52 (BCH-bound) [i]
      2. linear OA(457, 65, F4, 43) (dual of [65, 8, 44]-code), using the expurgated narrow-sense BCH-code C(I) with length 65 | 46−1, defining interval I = [0,21], and minimum distance d ≥ |{−21,−20,…,21}|+1 = 44 (BCH-bound) [i]
      3. linear OA(46, 12, F4, 5) (dual of [12, 6, 6]-code), using
  2. linear OA(21, 3, F2, 1) (dual of [3, 2, 2]-code), using

Mode: Constructive and linear.

Optimality

Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.

Compare with Markus Grassl’s online database of code parameters.

Other Results with Identical Parameters

None.

Depending Results

The following results depend on this result:

ResultThis
result
only
Method
1Linear OA(2215, 231, F2, 98) (dual of [231, 16, 99]-code) [i]Strength Reduction
2Linear OA(2216, 232, F2, 99) (dual of [232, 16, 100]-code) [i]Code Embedding in Larger Space
3Linear OA(2217, 233, F2, 99) (dual of [233, 16, 100]-code) [i]
4Linear OA(2214, 230, F2, 98) (dual of [230, 16, 99]-code) [i]Truncation
5Linear OA(2213, 229, F2, 97) (dual of [229, 16, 98]-code) [i]
6Linear OA(2211, 227, F2, 95) (dual of [227, 16, 96]-code) [i]
7Linear OA(2210, 226, F2, 94) (dual of [226, 16, 95]-code) [i]
8Linear OA(2208, 224, F2, 92) (dual of [224, 16, 93]-code) [i]
9Linear OA(2207, 223, F2, 91) (dual of [223, 16, 92]-code) [i]
10Linear OA(2204, 220, F2, 88) (dual of [220, 16, 89]-code) [i]
11Linear OOA(2215, 115, F2, 2, 99) (dual of [(115, 2), 15, 100]-NRT-code) [i]OOA Folding
12Linear OOA(2215, 77, F2, 3, 99) (dual of [(77, 3), 16, 100]-NRT-code) [i]
13Linear OOA(2215, 46, F2, 5, 99) (dual of [(46, 5), 15, 100]-NRT-code) [i]