| Secrecy Outage and Diversity Analysis of Cognitive Radio Systems | |
Zou, Yulong1; Li, Xuelong2 ; Liang, Ying-Chang3,4
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| 作者部门 | 光学影像学习与分析中心 |
| 2014-11-01 | |
| 发表期刊 | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
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| ISSN | 0733-8716 |
| 卷号 | 32期号:11页码:2222-2236 |
| 产权排序 | 2 |
| 摘要 | In this paper, we investigate the physical-layer security of a multi-user multi-eavesdropper cognitive radio system, which is composed of multiple cognitive users (CUs) transmitting to a common cognitive base station (CBS), while multiple eavesdroppers may collaborate with each other or perform independently in intercepting the CUs-CBS transmissions, which are called the coordinated and uncoordinated eavesdroppers, respectively. Considering multiple CUs available, we propose the round-robin scheduling as well as the optimal and suboptimal user scheduling schemes for improving the security of CUs-CBS transmissions against eavesdropping attacks. Specifically, the optimal user scheduling is designed by assuming that the channel state information (CSI) of all links from CUs to CBS, to primary user (PU) and to eavesdroppers are available. By contrast, the suboptimal user scheduling only requires the CSI of CUs-CBS links without the PU's and eavesdroppers' CSI. We derive closed-form expressions of the secrecy outage probability of these three scheduling schemes in the presence of the coordinated and uncoordinated eavesdroppers. We also carry out the secrecy diversity analysis and show that the round-robin scheduling achieves the diversity order of only one, whereas the optimal and suboptimal scheduling schemes obtain the full secrecy diversity, no matter whether the eavesdroppers collaborate or not. In addition, numerical secrecy outage results demonstrate that for both the coordinated and uncoordinated eavesdroppers, the optimal user scheduling achieves the best security performance and the round-robin scheduling performs the worst. Finally, upon increasing the number of CUs, the secrecy outage probabilities of the optimal and suboptimal user scheduling schemes both improve significantly. |
| 文章类型 | Article |
| 关键词 | Cognitive Radio Multi-user Scheduling Secrecy Outage Probability Secrecy Diversity Diversity Order |
| WOS标题词 | Science & Technology ; Technology |
| DOI | 10.1109/JSAC.2014.141121 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | PHYSICAL-LAYER SECURITY ; WIRE-TAP CHANNEL ; ARTIFICIAL-NOISE ; NETWORKS ; TRANSMISSIONS ; TRADEOFF |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Telecommunications |
| WOS类目 | Engineering, Electrical & Electronic ; Telecommunications |
| WOS记录号 | WOS:000348856700020 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/22434 |
| 专题 | 光谱成像技术研究室 |
| 作者单位 | 1.Nanjing Univ Posts & Telecommun, Sch Telecommun & Informat Engn, Nanjing 210003, Jiangsu, Peoples R China 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Ctr Opt IMagery Anal & Learning OPTIMAL, Xian 710119, Shaanxi, Peoples R China 3.ASTAR, I2R, Singapore, Singapore 4.Univ Elect Sci & Technol China, Chengdu 610054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, Yulong,Li, Xuelong,Liang, Ying-Chang. Secrecy Outage and Diversity Analysis of Cognitive Radio Systems[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,2014,32(11):2222-2236. |
| APA | Zou, Yulong,Li, Xuelong,&Liang, Ying-Chang.(2014).Secrecy Outage and Diversity Analysis of Cognitive Radio Systems.IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,32(11),2222-2236. |
| MLA | Zou, Yulong,et al."Secrecy Outage and Diversity Analysis of Cognitive Radio Systems".IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 32.11(2014):2222-2236. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Secrecy Outage and D（623KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY | 请求全文 | |
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