PPT Slide

Concatenation

Idea: Can we somehow combine two codes to take advantage of the strengths of both? Yes!

Code C1 = [n1, k1, d1]q1

Takes k1 letters, each from S1

where | S1 | = q1.

Outputs n1 letters, each from S1.

Code C2 = [n2, k2, d2]q2

Takes k2 letters, each from S2

where | S2 | = q2.

Outputs n2 letters, each from S2.

Restriction: q1 = q2k2

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