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| Content Provider | IET Digital Library |
|---|---|
| Author | Liao, Jianxin Zhang, Lei Li, Tonghong Wang, Jingyu Qi, Qi |
| Abstract | Existing rateless codes have a very low intermediate symbol recovery rate. Therefore, a new analysis method named iterative and small degree first (I-SDF) is presented for the design of optimised partial recovery Luby transform codes (PR-LTC) in this study. On the basis of I-SDF, the required number of encoded symbols with degree d in each decoding step is calculated by an iterative optimisation algorithm. Under the proposed design, R(R < k) input symbols can be recovered from as few encoded symbols as possible in PR-LTC with message length k. Furthermore, multiple PR-LTC (M-PR-LTC) is proposed to recover several partial recovery point (PRPs) efficiently. The analysis process is divided into multiple stages, and the required number of encoded symbols with degree d in each decoding step is calculated by a cross-stage iterative optimisation algorithm. In addition, the interaction of each stage is adjusted by introducing a weight for each PRP. The PR-LTC and M-PR-LTC are evaluated and compared with the existing schemes. The simulation results demonstrate that PR-LTC and M-PR-LTC outperform other existing schemes in terms of average overhead, average degree of encoded symbols, memory usage, bit error rate and energy consumption. |
| Starting Page | 1053 |
| Ending Page | 1062 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 10 |
| e-ISSN | 17518636 |
| Issue Number | Issue 9, Jun (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/10/9 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0539 |
| Journal | IET Communications |
| Publisher Date | 2016-06-09 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Code Cross-stage Iterative Optimisation Algorithm Interpolation And Function Approximation Iterative And Small Degree First Iterative Method M-PR-LTC Multiple Partial Recovery LT Code Numerical Analysis Optimisation Optimisation Technique Optimised Partial Recovery Luby Transform Code Partial Recovery Point PRP Transform Coding |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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