Reliability-based hybrid ARQ

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Reliability-based hybrid ARQ

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A new hybrid automatic repeat request (ARQ) scheme that utilises reliability estimates generated by soft-input, soft-output (SISO) decoders is proposed. The proposed ARQ scheme transmits additional information for the unreliable bits, and this information is used to perform additional decoding. Results are presented that show this ARQ technique can provide performance close to the channel capacity.

Inspec keywords: turbo codes; reliability theory; automatic repeat request; iterative decoding

Other keywords: iterative decoding; channel capacity; turbo coding scheme; soft-input soft-output decoders; ARQ technique; SISO decoders; error-control coding; decoding; hybrid automatic repeat request scheme; reliability estimates

Subjects: Codes; Protocols

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http://iet.metastore.ingenta.com/content/journals/10.1049/el_20020448
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