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- Holland, Ian, et al.
(author)
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Soft Combining for Hybrid ARQ
- 2005
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In: Electronics Letters. - : IEE. - 0013-5194. ; 41:22, s. 1230-1231
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Journal article (peer-reviewed)abstract
- A soft combining approach utilising symbol-by-symbol maximum a posteriori probability decoding is proposed for hybrid automatic repeat request schemes. In comparison to an existing soft combining approach, significant reductions in post-decoding bit error rate can be obtained without sacrificing the throughput efficiency. This is achieved with the proposed method by accumulating the signal-to-noise ratio at the channel output on each additional retransmission, for use in calculating extrinsic log-likelihood ratios on subsequent decoding attempts.
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