Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision
Cooperative transmission can effectively overcome performance degradation caused by channel fading and thus improve diversity effect.In order to improve the spectral efficiency of all-time cooperative,relay selection strategy with selective decode-and-forward protocol based on threshold decision was...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2016-01-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016003/ |
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| _version_ | 1841529800218378240 |
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| author | Jianwu ZHANG Jing JIANG Jianrong BAO Bin JIANG |
| author_facet | Jianwu ZHANG Jing JIANG Jianrong BAO Bin JIANG |
| author_sort | Jianwu ZHANG |
| collection | DOAJ |
| description | Cooperative transmission can effectively overcome performance degradation caused by channel fading and thus improve diversity effect.In order to improve the spectral efficiency of all-time cooperative,relay selection strategy with selective decode-and-forward protocol based on threshold decision was mainly investigated.The performance was also analysed and the approximate expression of the outage probability and the spectrum efficiency with high signal-to-noise（SNR）were derived.Simulation results show that under low-SNR and few relays circulations,the outage probability under different thresholds are very close.If the collaboration threshold increases by 0.09,the spectral efficiency improves by 0.12.Under high-SNR and many relays circulations,the spectral efficiency under different thresholds are similar.When the system outage probability is 10<sup>-2</sup>,the collaboration threshold decreases by 0.9 and 1.1 dB SNR gain can be obtained. |
| format | Article |
| id | doaj-art-7d5d99bbde474c6d991bbd20b7d515b1 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-7d5d99bbde474c6d991bbd20b7d515b12025-01-15T03:15:30ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012016-01-0132182459610607Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decisionJianwu ZHANGJing JIANGJianrong BAOBin JIANGCooperative transmission can effectively overcome performance degradation caused by channel fading and thus improve diversity effect.In order to improve the spectral efficiency of all-time cooperative,relay selection strategy with selective decode-and-forward protocol based on threshold decision was mainly investigated.The performance was also analysed and the approximate expression of the outage probability and the spectrum efficiency with high signal-to-noise（SNR）were derived.Simulation results show that under low-SNR and few relays circulations,the outage probability under different thresholds are very close.If the collaboration threshold increases by 0.09,the spectral efficiency improves by 0.12.Under high-SNR and many relays circulations,the spectral efficiency under different thresholds are similar.When the system outage probability is 10<sup>-2</sup>,the collaboration threshold decreases by 0.9 and 1.1 dB SNR gain can be obtained.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016003/selective decode-and-forwardrelay selectionthreshold decisionoutage probabilityspectrum efficiency |
| spellingShingle | Jianwu ZHANG Jing JIANG Jianrong BAO Bin JIANG Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision Dianxin kexue selective decode-and-forward relay selection threshold decision outage probability spectrum efficiency |
| title | Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision |
| title_full | Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision |
| title_fullStr | Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision |
| title_full_unstemmed | Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision |
| title_short | Performance analysis of relay selection strategy with selective decode-and-forward protocol based on threshold decision |
| title_sort | performance analysis of relay selection strategy with selective decode and forward protocol based on threshold decision |
| topic | selective decode-and-forward relay selection threshold decision outage probability spectrum efficiency |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016003/ |
| work_keys_str_mv | AT jianwuzhang performanceanalysisofrelayselectionstrategywithselectivedecodeandforwardprotocolbasedonthresholddecision AT jingjiang performanceanalysisofrelayselectionstrategywithselectivedecodeandforwardprotocolbasedonthresholddecision AT jianrongbao performanceanalysisofrelayselectionstrategywithselectivedecodeandforwardprotocolbasedonthresholddecision AT binjiang performanceanalysisofrelayselectionstrategywithselectivedecodeandforwardprotocolbasedonthresholddecision |