基本信息来源于合作网站,原文需代理用户跳转至来源网站获取       
摘要:
The specification of IEEE 802.22 defines the world-wide first cognitive radio (CR) standard. Within a range of 40 MHz to 910 MHz CR systems are allowed to allocate spectrum besides the currently established radio services like radio and TV broadcasting. In order to fulfill the regulative guidelines of interference limita-tions, a capable spectral sensing and user detection has to be provided. Due to the wide frequency range specified in IEEE 802.22 and the high dynamic range of signals allocated in this band there are high de-mands on the CR receiver’s front-end. Especially the performance requirements on analog-to-digital con-verters increase significantly compared to current wireless systems. Based on measurements taken in this frequency range requirements to CR’s ADCs are figured out. Furthermore, the measurement results are ana-lyzed regarding expectable allocation scenarios and their impacts to spectral sensing. Derived from this re-sults and a comparison of general spectral sensing mechanisms an approach for a CR receiver supporting wide-band sensing is presented. Considering the apriori information resulting from scenario analysis and including adapted information processing in the terminal the ADC’s performance requirements can be re-duced.
推荐文章
基于World Wide Web的课件设计方法
课件
WWW
教学
多媒体
动态更新Radio控件选项的实现
动态网页
ASP
ADO
数据库
SQL
CET Band IV中词汇与语法测试部分分析
交际教学法
词汇与语法
语境
多项选择
完形填空
直接测试
内容分析
关键词云
关键词热度
相关文献总数  
(/次)
(/年)
文献信息
篇名 A Cognitive Radio Receiver Supporting Wide-Band Sensing
来源期刊 无线传感网络(英文) 学科 医学
关键词 COGNITIVE Radio IEEE 802.22 Spectrum SENSING A/D CONVERSION
年,卷(期) 2009,(3) 所属期刊栏目
研究方向 页码范围 123-134
页数 12页 分类号 R73
字数 语种
DOI
五维指标
传播情况
(/次)
(/年)
引文网络
引文网络
二级参考文献  (0)
共引文献  (0)
参考文献  (0)
节点文献
引证文献  (0)
同被引文献  (0)
二级引证文献  (0)
2009(0)
  • 参考文献(0)
  • 二级参考文献(0)
  • 引证文献(0)
  • 二级引证文献(0)
研究主题发展历程
节点文献
COGNITIVE
Radio
IEEE
802.22
Spectrum
SENSING
A/D
CONVERSION
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
无线传感网络(英文)
月刊
1945-3078
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
358
总下载数(次)
0
论文1v1指导