Name
Abstract | ||
|---|---|---|
We study variable-length feedback (VLF) codes under a strict delay constraint to maximize their average transmission rate (ATR) in a discrete memoryless channel (DMC) while considering periodic decoding attempts. We first derive a lower bound on the maximum achievable ATR, and confirm that the VLF code can outperform non-feedback codes with a larger delay constraint. We show that for a given decoding period, as the strict delay constraint, , increases, the gap between the ATR of the VLF code and the DMC capacity scales at most on the order of instead of for non-feedback codes as shown in Polyanskiy et al. [“Channel coding rate in the finite blocklength regime,” IEEE Trans. Inf. Theory, vol. 56, no. 5, pp. 2307–2359, May 2010] . We also develop an approximation indicating that, for a given , the achievable ATR increases as the decoding period decreases. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/LCOMM.2015.2398866 | Communications Letters, IEEE |
Keywords | Field | DocType |
Decoding,Delays,Receivers,Approximation methods,Encoding,Transmitters,Random variables | Transmission rate,Discrete mathematics,Random variable,Code rate,Upper and lower bounds,Control theory,Communication channel,Real-time computing,Decoding methods,Periodic graph (geometry),Mathematics,Encoding (memory) | Journal |
Volume | Issue | ISSN |
19 | 4 | 1089-7798 |
Citations | PageRank | References |
0 | 0.34 | 6 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Seong Hwan Kim | 1 | 334 | 31.76 |
| Dan Keun Sung | 2 | 1478 | 147.84 |
| Tho Le-Ngoc | 3 | 2210 | 237.14 |