Name
Abstract | ||
|---|---|---|
In this paper, a rateless channel coding scheme is proposed for deep-space communication. Unlike the traditional fixed-rate coding schemes, in our scheme the coding rate is not designed as a fixed value before transmission, but adaptive to the channel variations resulted from the dynamically varied transmission distance and complex atmospheric conditions. Specifically, a Raptor code which is provided by a cascade structure is adopted for the data transmission. The pre-code of Raptor code is encoded with a linear-time progressive edge-growth algorithm which avoids tedious calculations by matrix transformation. Moreover, based on a joint iterative decoding method, the output degree distribution of our Raptor code is optimized so as to obtain good decoding performances. Comparisons are provided with respect to the fixed-rate coding schemes by numerical simulation, which shows that our proposed rateless coding scheme has better performance and is adaptively capacity-approaching for the deep-space data transmission. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/NTMS.2015.7266524 | 2015 7th International Conference on New Technologies, Mobility and Security (NTMS) |
Keywords | Field | DocType |
Rateless code,deep-space communication,cascade coding structure,joint iterative decoding,degree distribution | Forward error correction,Telecommunications,Code rate,Data transmission,Computer science,Algorithm,Communication channel,Raptor code,Decoding methods,Channel capacity,Variable-length code,Distributed computing | Conference |
ISSN | Citations | PageRank |
2157-4952 | 0 | 0.34 |
References | Authors | |
8 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shaolei Chen | 1 | 0 | 0.34 |
| Chuangmu Yao | 2 | 0 | 0.34 |
| Rui Dai | 3 | 49 | 14.71 |