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https://open.uns.ac.rs/handle/123456789/10766
Nаziv: | The design of rate-compatible LDPC codes for IR-HARQ systems over erasure channels | Аutоri: | Rastovac, Dragan Vukobratović, Dejan Stanković V. Stanković L. |
Dаtum izdаvаnjа: | 13-авг-2010 | Čаsоpis: | IEEE International Conference on Communications | Sažetak: | Application-layer forward error correcting (AL-FEC) codes, providing error protection across blocks of packetized data, are becoming increasingly important in emerging networking applications. In this paper, we investigate AL-FEC solutions based on rate-compatible low-density parity-check (RC LDPC) codes, as they may offer excellent performance with low system complexity. Recent studies on RC LDPC codes are focused on physical layer incremental redundancy hybrid automatic-repeat-request (IR-HARQ) systems and typical wireless channel models. The focus of our study is RC LDPC code design as an AL-FEC solution in packet-level IR-HARQ systems assuming erasure channels between the source and the destination(s). We propose novel design methods for RC LDPC codes over erasure channels motivated by the dependance of finite-length LDPC code performance on the size of the smallest stopping set of its code graph. Simulation experiments demonstrate that the proposed RC LDPC design significantly outperforms the state-of-the-art RC LDPC codes in the error-floor region, and in particular, in the domain of poor channel conditions. ©2010 IEEE. | URI: | https://open.uns.ac.rs/handle/123456789/10766 | ISBN: | 9781424464043 | ISSN: | 5361486 | DOI: | 10.1109/ICC.2010.5502378 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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