Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization
The performance of a dual-hop amplify-and-forward (AF) relay system is studied with the k th worst partial relay selection (PRS) protocol under the joint impact of feedback delay and multiple cochannel interference (CCI) at the relay nodes. In our analysis, the closed-form and asymptotic expressions...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2014/629348 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832547287164780544 |
|---|---|
| author | Xuanxuan Tang Weifeng Mou Fang Fang Yueming Cai Weiwei Yang Tao Zhang |
| author_facet | Xuanxuan Tang Weifeng Mou Fang Fang Yueming Cai Weiwei Yang Tao Zhang |
| author_sort | Xuanxuan Tang |
| collection | DOAJ |
| description | The performance of a dual-hop amplify-and-forward (AF) relay system is studied with the k th worst partial relay selection (PRS) protocol under the joint impact of feedback delay and multiple cochannel interference (CCI) at the relay nodes. In our analysis, the closed-form and asymptotic expressions of the outage probability are derived and the achievable coding gain and diversity gain of the system are accurately revealed. Further, based on the asymptotic analysis we propose a power allocation scheme, which can lead to SNR performance gains of more than 1 dB compared to the equal power allocation scheme. Finally, Monte-Carlo simulation results are presented to verify the validity of our theoretical analysis. |
| format | Article |
| id | doaj-art-6074c7d140c84ff181d53e7137b632de |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-6074c7d140c84ff181d53e7137b632de2025-02-03T06:45:24ZengWileyInternational Journal of Distributed Sensor Networks1550-14772014-01-011010.1155/2014/629348629348Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power OptimizationXuanxuan TangWeifeng MouFang FangYueming CaiWeiwei YangTao ZhangThe performance of a dual-hop amplify-and-forward (AF) relay system is studied with the k th worst partial relay selection (PRS) protocol under the joint impact of feedback delay and multiple cochannel interference (CCI) at the relay nodes. In our analysis, the closed-form and asymptotic expressions of the outage probability are derived and the achievable coding gain and diversity gain of the system are accurately revealed. Further, based on the asymptotic analysis we propose a power allocation scheme, which can lead to SNR performance gains of more than 1 dB compared to the equal power allocation scheme. Finally, Monte-Carlo simulation results are presented to verify the validity of our theoretical analysis.https://doi.org/10.1155/2014/629348 |
| spellingShingle | Xuanxuan Tang Weifeng Mou Fang Fang Yueming Cai Weiwei Yang Tao Zhang Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization International Journal of Distributed Sensor Networks |
| title | Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization |
| title_full | Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization |
| title_fullStr | Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization |
| title_full_unstemmed | Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization |
| title_short | Partial Relay Selection with Feedback Delay and Cochannel Interference: Performance Analysis and Power Optimization |
| title_sort | partial relay selection with feedback delay and cochannel interference performance analysis and power optimization |
| url | https://doi.org/10.1155/2014/629348 |
| work_keys_str_mv | AT xuanxuantang partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization AT weifengmou partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization AT fangfang partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization AT yuemingcai partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization AT weiweiyang partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization AT taozhang partialrelayselectionwithfeedbackdelayandcochannelinterferenceperformanceanalysisandpoweroptimization |