Efficient ARQ technique using soft demodulation |
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Authors: | Benelli G |
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Affiliation: | Università di Firenze, Dipartimento di Ingegneria Elettronica, Firenze, Italy; |
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Abstract: | In the letter a new technique for increasing the efficiency of an automatic-repeat-request communication system is described. This technique uses all the received versions of a codeword, and also those versions containing errors. Such a strategy, together with a soft demodulation of each received symbol, is particularly efficient when applied to ARQ schemes in which each block erroneously received is retransmitted many times. |
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