Variable length to block coding

	Variable length to block coding
Iranian Journal of Science and Technology Transactions of Electrical Engineering
مقاله 11، دوره 28، شماره 3، اردیبهشت 2004، صفحه 389-393
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22099/ijste.2013.1037
چکیده
We treat the problem of encoding the outputs from an information source, and the class of encoding schemes considered is restricted to those in which each output from the source is encoded as a separate, uniquely decodable codeword. We present a uniquely decodable scheme in this class which minimizes the ensemble average length of the transmitted message. The efficiency of this method in some cases is higher than conventional methods like block coding (in this paper we call it "block to variable length coding" relative to the title of the paper) by using the Huffman method. Although the efficiency of the encoding scheme can be improved by using the variable length to variable length technique, this topic is not pursued
کلیدواژه‌ها
Block coding؛ variable length coding؛ prefix codes

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