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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Azmi, M.H. Jinhong Yuan |
| Copyright Year | 2009 |
| Description | Author affiliation: School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, 2052, AUSTRALIA (Azmi, M.H.; Jinhong Yuan) |
| Abstract | This paper presents a new bilayer-expurgated LDPC (BE-LDPC) code design for decode-and-forward relay system. The code design is based on the multi-edge type LDPC (MET-LDPC) code structure. The lower and upper graphs' edges of the BE-LDPC codes are represented via different edge types. We call the codes as multi-edge type bilayer-expurgated LDPC (MET-BE-LDPC) codes. We derive the relationship between the lower and the overall graphs of the MET-BE-LDPC codes using the multi-edge type multinomials. This relationship acts as a constraint in optimizing the MET-BE-LDPC codes under the density evolution. We apply the differential evolution algorithm to search for the best MET-BE-LDPC codes. Applying the proposed methodology, two MET-BE-LDPC codes are designed. The codes perform asymptotically within 0.08474–0.5087 dB from the theoretical limits. Finally, we demonstrate that the proposed methodology can be used to design the BE-LDPC codes at a larger source-to-relay and source-to-destination SNR differences. |
| Starting Page | 1988 |
| Ending Page | 1992 |
| File Size | 952356 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424443123 |
| DOI | 10.1109/ISIT.2009.5205732 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-28 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Parity check codes Relays Decoding Constraint optimization Design methodology Australia Robustness Data communication Telecommunication network reliability Communication systems |
| Content Type | Text |
| Resource Type | Article |
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