| 分集技术下频谱感知的性能分析 |
| |
| 引用本文： | 王谦,岳殿武. 分集技术下频谱感知的性能分析[J]. 通信学报, 2010, 31(4): 134-140 |
| |
| 作者姓名： | 王谦 岳殿武 |
| |
| 作者单位： | 大连海事大学,信息科学技术学院,辽宁,大连,116026;东南大学,移动通信国家重点实验室,江苏,南京,210096 |
| |
| 基金项目： | 国家自然科学基金，东南大学移动通信国家重点实验室开放研究基金，高等学校博士学科点专项科研基金 |
| |
| 摘 要： | 研究了在普适的相关非同分布Nakagami-m衰落模型情况下,次用户采用能量检测和等增益合并技术进行频谱感知的性能.给出了检测概率的闭式表达式,并通过分析漏检概率的渐进曲线斜率说明分集技术对频谱感知性能带来了提升.利用数值结果和Monte-Carlo仿真验证了理论推导的准确性.最后通过Monte-Carlo仿真观察了等增益合并分集技术下信道相关性对检测概率的影响.
|
| 关 键 词： | 频谱感知 分集技术 认知无线电 等增益合并 |
Performance analysis of spectrum sensing using diversity technique |
| |
| WANG Qian,YUE Dian-wu. Performance analysis of spectrum sensing using diversity technique[J]. Journal on Communications, 2010, 31(4): 134-140 |
| |
| Authors: | WANG Qian YUE Dian-wu |
| |
| Affiliation: | WANG Qian1,2,YUE Dian-wu1,2 (1. College of Information Science , Technology,Dalian Maritime University,Dalian 116026,China,2. National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China) |
| |
| Abstract: | Performance of spectrum sensing using energy detection and equal gain combining technique was investigated in the general correlated non-identical Nakagami-m fading channels. Closed-form expression of detection probability was derived,and performance improvement obtained by utilizing equal gain combining was analyzed via the asymptotical analysis. The validity of theoretical results were shown by comparing numerical results with Monte-Carlo simulations. At last,the influence of channel correlation on the de... |
| |
| Keywords: | spectrum sensing diversity technique cognitive radio equal gain combining |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《通信学报》浏览原始摘要信息 |
|
点击此处可从《通信学报》下载全文 |
|
