Name
Abstract | ||
|---|---|---|
Physical layer network coding (PNC) significantly improves the throughput of the two-way relay channel (TWRC). However, most of current work on PNC just focuses on one pair users, and there are limit work on multi-pair PNC, in which the main bottleneck on system performance is the interference caused by the remaining communicating pairs. In this paper, we consider a scenario where multiple pairs communicate with each other through one relay node. For a purpose of comparison, we present the analytical capacities of the multi-pair version of the existing TWRC schemes in closed forms. Considering more practical issues such as the direction distribution of incident signals, we propose a spatial multi-pair physical layer network coding scheme. The novelty includes: in the multiple access phase, the log likelihood ratio combination scheme is proposed, which is robust in bad communication conditions; in the broadcast phase, two adaptive group broadcasting schemes are proposed, which can efficiently overcome the near interference problem. Simulation results validate the superiority of the proposed algorithms. |
Year | DOI | Venue |
|---|---|---|
2018 | https://doi.org/10.1007/s11276-016-1327-7 | Wireless Networks |
Keywords | Field | DocType |
Two-way relay channels,Multi-pair communication,Physical network coding,Beamforming | Relay channel,Bottleneck,Broadcasting,Beamforming,Likelihood-ratio test,Computer science,Computer network,Interference (wave propagation),Throughput,Relay | Journal |
Volume | Issue | ISSN |
24 | 1 | 1022-0038 |
Citations | PageRank | References |
1 | 0.37 | 15 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ning Xie | 1 | 39 | 12.47 |
| Shengli Zhang | 2 | 477 | 37.16 |
| li zhang | 3 | 101 | 18.22 |
| Hui Wang | 4 | 175 | 35.62 |