| Ge Wendong②*（葛文栋）,Ji Hong*,Si Pengbo**.[J].高技术通讯(英文),2011,17(4):350~353 |
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| Optimal energy-efficient power control for cognitive radio based on static and dynamic features of primary users① |
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| DOI： |
| 中文关键词: |
| 英文关键词: cognitive radio(CR), power control, energy-efficient, Markov, false alarm |
| 基金项目: |
| Author Name | Affiliation | | Ge Wendong②*（葛文栋） | | | Ji Hong* | | | Si Pengbo** | |
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| 中文摘要: |
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| 英文摘要: |
| In this paper, the energy-efficient power control problem in cognitive radio (CR) networks is studied not only to provide energy-efficient transmission, but also to guarantee the normal operation of primary users (PUs). Moreover, the static energy-efficient power control (SEPC) algorithm is proposed in static scenario to maximize the capacity of secondary users (SUs) and to reduce the power consumption according to the interference from PU to SU. Furthermore, based on the analysis of PU’s dynamic feature with Markov chain and SEPC algorithm, the dynamic energy-efficient power control (DEPC) algorithm is proposed taking into account the probability of detection and false alarm caused by sensing errors. Extensive simulation results show that the performance of the proposed algorithms is significantly improved compared with the existing algorithm. |
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