Posted by: atri | October 10, 2007

Lecture 19: Elias-Bassalygo Bound

Today we proved the Elias-Bassylygo bound between rate R and relative distance \delta of a q-ary code: R\le 1-H_q(J_q(\delta))+o(1), where J_q(\delta)=\left(1-\frac{1}{q}\right)\left(1-\sqrt{1-\frac{q\delta}{q-1}}\right).

We also looked at secret sharing and saw some “trivial” schemes. Next lecture, we will look at some more interesting schemes that are based on codes.


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