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认知无线电中协作能量概率分布频谱感知方法
  • ISSN号：1007-5321
  • 期刊名称：北京邮电大学学报
  • 时间：2011
  • 页码：19-22
  • 分类：TN91-55[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：北京交通大学宽带无线移动通信研究所, 轨道交通控制与安全国家重点实验室(北京交通大学), 马里兰大学电子和计算机工程系
  • 相关基金：国家高技术研究发展计划项目(2009AA011805,2009AA011302);国家自然科学基金项目(61071075,60830001,61032002)
  • 相关项目：新一代移动通信系统中基于位置信息的无线资源管理研究
作者： 李佳俊|谈振辉|韩峰|乔晓瑜|
关键词： 认知无线电, 频谱感知, 能量概率分布, 协作, cognitive radio, spectrum sensing, energy probability distribution, cooperation
中文摘要：

提出了一种基于能量概率分布(EPD)的协作频谱感知算法,以提高认知无线电的检测性能.与传统能量检测使用能量均值做为检测统计量不同,EPD感知算法中的协作感知次用户统计大于给定门限值的采样信号个数,并传送给数据融合中心,数据融合中心将所有统计结果进行叠加,并与噪声的能量概率密度进行相关运算来获得判决结果.利用高斯近似理论分析所提出的EPD协作频谱感知算法的检测性能.仿真结果表明,协作用户数越多,新提出算法的检测性能比传统协作频谱感知硬判决算法越有优势,同时又不需要任何主用户的先验信息.

英文摘要：

提出了一种基于能量概率分布(EPD)的协作频谱感知算法,以提高认知无线电的检测性能.与传统能量检测使用能量均值做为检测统计量不同,EPD感知算法中的协作感知次用户统计大于给定门限值的采样信号个数,并传送给数据融合中心,数据融合中心将所有统计结果进行叠加,并与噪声的能量概率密度进行相关运算来获得判决结果.利用高斯近似理论分析所提出的EPD协作频谱感知算法的检测性能.仿真结果表明,协作用户数越多,新提出算法的检测性能比传统协作频谱感知硬判决算法越有优势,同时又不需要任何主用户的先验信息.

同期刊论文项目
地面超高移动性宽带无线通信关键问题
期刊论文 98 会议论文 36 著作 2
满足高速列车控制安全数据传输的无线通信理论与关键技术
期刊论文 83 会议论文 119 获奖 12 专利 22 著作 3
新一代移动通信系统中基于位置信息的无线资源管理研究
期刊论文 19 会议论文 12 专利 9
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期刊信息
  • 《北京邮电大学学报》
  • 北大核心期刊（2011版）
  • 主管单位:教育部
  • 主办单位:北京邮电大学
  • 主编：刘杰
  • 地址：北京海淀区西土城路10号195信箱
  • 邮编：100876
  • 邮箱：byxb@bupt.edu.cn
  • 电话：010-62281995 62282742
  • 国际标准刊号：ISSN：1007-5321
  • 国内统一刊号：ISSN：11-3570/TN
  • 邮发代号:2-648
  • 获奖情况:
  • 美国工程信息公司（Ei）数据库收录期刊,1999年全国优秀高等学校自然科学学报及教育部优秀...,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:7684