Soft Combining for Hybrid ARQ
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Author(s): | Ian Holland, Hans-Jürgen Zepernick, Manora Caldera |
| Title: | Soft Combining for Hybrid ARQ |
| Journal: | Electronics Letters |
| Year: | 2005 |
| Volume: | 41 |
| Issue: | 22 |
| Pagination: | 1230-1231 |
| ISSN: | 0013-5194 |
| Publisher: | IEE |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling) School of Engineering S- 372 25 Ronneby +46 455 38 50 00 http://www.tek.bth.se/ |
| Authors e-mail: | Ian.Holland@unisa.edu.au, Hans-Jurgen.Zepernick@bth.se, caldera@watri.org.au |
| Language: | English |
| 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. |
| Subject: | Telecommunications\Coding Theory |
