Detection for physical-layer network coding in two-way relay channels
The detection for physical-layer network coding (PNC) in two-way relay channels was investigated.Maximum-likelihood (ML) detection not only had great performance but also had high computational complexity.Therefore,without channel state information (CSI) at source nodes,two detection schemes were pr...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2012-02-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)02-0082-05/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The detection for physical-layer network coding (PNC) in two-way relay channels was investigated.Maximum-likelihood (ML) detection not only had great performance but also had high computational complexity.Therefore,without channel state information (CSI) at source nodes,two detection schemes were proposed.The first scheme was likelihood ratio(LR)detection based on LR function,and the other was maximum a posteriori probability (MAP) detection based on MAP rule.Meanwhile,It carried out similar analysis if CSI was available at source nodes.Compared to ML detection which separately detects two source messages,numerical and simulation results show that LR detection outperforms it in terms of BER metric with the requirement for additional noise variance information.And MAP detection is equivalent to ML detection,and it has lower computational complexity. |
|---|---|
| ISSN: | 1000-436X |