Time-efficient cooperative spectrum sensing via analog computation over multiple-access channel
文献类型：期刊论文
| 作者 | Zheng M(郑萌) ; Xu C(许驰); Liang W(梁炜); Yu HB(于海斌); Chen L(陈林)
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| 刊名 | Computer Networks
 |
| 出版日期 | 2017 |
| 卷号 | 112页码:84-94 |
| 关键词 | Cognitive radio Spectrum sensing Energy detection Multiple-access channel Analog computation |
| ISSN号 | 1389-1286 |
| 产权排序 | 1 |
| 通讯作者 | 郑萌 ; 梁炜 ; 于海斌 |
| 中文摘要 | Conventional cooperative spectrum sensing (CSS) schemes in cognitive radio networks (CRNs) require that the secondary users (SUs) report their sensing data separately in the time domain to the fusion center, which yields long reporting delay especially in the case of large number of cooperative SUs. By exploiting the computation over multiple-access channel (CoMAC) method, this paper proposes a novel CoMAC-based CSS scheme that allows the cooperative SUs to encode their local statistics in transmit power and to transmit simultaneously the modulated symbols sequence carrying transmit power information to the fusion center. The fusion center then makes the final decision on the presence of primary users by recovering the overall test statistic of energy detection from the energy of the received signal. Performance metrics of the CoMAC-based CSS scheme, i.e., detection probability and false alarm probability, are further derived based on the central limit theorem. Finally, based on the derived detection and false alarm probabilities, both energy detection threshold and spectrum sensing time are optimized to improve the average throughput of the CRN. Simulations demonstrate the efficiency of this work. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Computer Science, Hardware & Architecture ; Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications |
| 研究领域[WOS] | Computer Science ; Engineering ; Telecommunications |
| 关键词[WOS] | COGNITIVE RADIO NETWORKS ; OPTIMIZATION ; FUSION |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000392781800007 |
| 源URL | [http://ir.sia.cn/handle/173321/19424]  |
| 专题 | 沈阳自动化研究所_工业控制网络与系统研究室 |
| 推荐引用方式 GB/T 7714 | Zheng M,Xu C,Liang W,et al. Time-efficient cooperative spectrum sensing via analog computation over multiple-access channel[J]. Computer Networks,2017,112:84-94. |
| APA | Zheng M,Xu C,Liang W,Yu HB,&Chen L.(2017).Time-efficient cooperative spectrum sensing via analog computation over multiple-access channel.Computer Networks,112,84-94. |
| MLA | Zheng M,et al."Time-efficient cooperative spectrum sensing via analog computation over multiple-access channel".Computer Networks 112(2017):84-94. |
入库方式： OAI收割
来源：沈阳自动化研究所
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