Krafts inequality
Kraft's inequality When an instantaneously decodable code is to be formed from an alphabet of q letters, with the ith codeword being λi letters in length, Kraft's inequality
is a necessary and sufficient condition for such a code to be constructable with n codewords. In a code with no codewords remaining for allocation, the equality sign operates. See also prefix codes.
is a necessary and sufficient condition for such a code to be constructable with n codewords. In a code with no codewords remaining for allocation, the equality sign operates. See also prefix codes.
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Krafts inequality