Abstract
This letter considers a code design for an asymmetric Slepian-Wolf multiple-access relay channel, in which the users and relay have different channel conditions. In this case, the conventional parity approach distributed source coding is no longer applicable. Hence, a new distributed joint source-channel superposition coding (DJSC-SC) is proposed. The proposed DJSC-SC matches the asymmetric channels, and makes full use of the good channel to obtain a better performance. Simulation results show that, compared with the conventional PA, the performance of the DJSC-SC scheme has a significant improvement and is within 1.4 dB from the capacity limit.
| Original language | English |
|---|---|
| Article number | 7979593 |
| Pages (from-to) | 642-645 |
| Number of pages | 4 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 6 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 2017 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017 IEEE.
ASJC Scopus Subject Areas
- Control and Systems Engineering
- Electrical and Electronic Engineering
Keywords
- asymmetric MARC
- Distributed source coding
- joint source-channel coding
- superposition coding