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Paper detail

On the Construction of Prefix-Free and Fix-Free Codes with Specified Codeword Compositions

We investigate the construction of prefix-free and fix-free codes with specified codeword compositions. We present a polynomial time algorithm which constructs a fix-free code with the same codeword compositions as a given code for a special class of codes called distinct codes. We consider the construction of optimal fix-free codes which minimizes the average codeword cost for general letter costs with uniform distribution of the codewords and present an approximation algorithm to find a near optimal fix-free code with a given constant cost.

preprint2012arXivOpen access
Ali KakhbodMorteza Zadimoghaddam
math.ITInformation Theory
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Ali KakhbodMorteza Zadimoghaddam

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