Name
Abstract | ||
|---|---|---|
We investigate the problem of sending a Gaussian source over a Rayleigh fading channel with Gaussian correlated interference known to the transmitter using low-latency codes. For the matched bandwidth case between the source and the channel, we show that among all single-letter codes, the uncoded scheme achieves the lowest mean square error distortion under full correlation between source and interference, and hence it is optimal. To benefit from nonlinear strategies for other scenarios, we derive the necessary conditions for optimality and propose an iterative algorithm based on joint optimization between the encoder and the decoder. A reduced-complexity approach for the implementation of the design algorithm is presented based on Monte-Carlo (at the encoder side) and importance sampling (at the decoder side) techniques. Furthermore, the scalability of our low-latency scheme is improved by modifying the search process at the encoder side using a targeted search method. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/WCL.2013.120513.130680 | Wireless Communications Letters, IEEE |
Keywords | Field | DocType |
Gaussian processes,Monte Carlo methods,channel coding,decoding,fading channels,iterative methods,mean square error methods,optimisation,radio transmitters,radiofrequency interference,source coding,Gaussian correlated interference,Monte-Carlo method,Rayleigh fading channel,bandwidth matching,decoder,encoder,iterative algorithm,low-latency source-channel coding,mean square error distortion,reduced-complexity approach,sampling techniques,single-letter codes,transmitter,Shannon-Kotel'nikov mappings,correlated interference,dirty paper coding,joint source-channel coding | Mathematical optimization,Rayleigh fading,Algorithm design,Fading,Computer science,Algorithm,Communication channel,Theoretical computer science,Bandwidth (signal processing),Encoder,Interference (wave propagation),Decoding methods | Journal |
Volume | Issue | ISSN |
3 | 2 | 2162-2337 |
Citations | PageRank | References |
4 | 0.42 | 6 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ahmad Abou Saleh | 1 | 20 | 3.95 |
| Fady Alajaji | 2 | 319 | 41.92 |
| W.-Y. Chan | 3 | 114 | 18.25 |