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认知无线电网络频谱检测研究 被引量：10

Research of Spectrum Sensing in Cognitive Radio Network
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摘要 为解决认知无线电中空闲频谱的识别问题,综述了近期世界范围内的频谱检测方法。分析了基于信道衰落、噪声特性等因素对频谱检测性能的影响,指出了物理层检测、MAC(Media Access Control)层自适应检测以及多用户合作检测的关键技术问题及其分析处理方法,并对检测性能进行了定性和定量的分析和探讨。 In order to solve the problem of spectrum recognization in cognitive radio, the spectrum sensing methods of recent years are described. Local spectrum sensing schemes in cognitive radio network were introduced. The impact of spectrum sensing under shadowing/fading environments and noise uncertainty, and adaptive MAC （Media Access Control）-layer sensing algorithm was analyzed with emphasis. The effect of the selection of data fusion and decision algorithms, shadowing correlation, the presence of distrusted users on detection performance of cooperative spectrum sensing was also discussed.
作者 张宇 冯春燕 郭彩丽 曾志民
机构地区 北京邮电大学通信网络综合技术研究所
出处 《吉林大学学报（信息科学版）》 CAS 2008年第2期126-135,共10页 Journal of Jilin University（Information Science Edition）
基金 国家自然科学基金资助项目(60772110)
关键词 认知无线电网络 频谱检测 MAC层自适应检测 合作检测 cognitive radio network spectrum sensing （media access control） （MAC）-layer adaptive sensing cooperative spectrum sensing
分类号 TN915.01 [电子电信—通信与信息系统]
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参考文献30

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同被引文献74

  • 1迟永钢,王芳.基于PSWF的超宽带通信系统最佳波形设计[J].南京邮电大学学报（自然科学版）,2006,26(2):43-46. 被引量：10
  • 2田峰,程世伦,杨震.无线区域网和认知无线电技术(1)[J].中兴通讯技术,2006,12(4):61-64. 被引量：10
  • 3Y u W. Competitionand cooperation in mult-user communication environments[D]. Ph.D. dissertation, Stanford Univ.
  • 4Simon Haykin. Cognitive Radio : brain - EmpoweredWireless Communications[J]. Life Fellow , IEEE: 201 -220.
  • 5Chen R ,Park J. Ensuring trustworthy spectrum sensing in cognitive radio networks[C]. In: IEEE Workshop on Networking Technologies for Software Defined Radio Networks, 2006.
  • 6赵树杰,赵建勋.信号检测与估计[M].北京:清华大学出版社,2005:452-476.
  • 7CABRIC D, MISHRA S M, BRODESEN R W. Implementation Issues in spectrum sensing for cognitive radios[C]. Signals, Systems and Computers, 2004 Conference Record of the Thirty-eighth Asilomar Conference on 2004, 1 (7-10) 772-776.
  • 8CABRIC D, TKACHENKO A, BRODERSEN R W. Spectrum sensing measurements of pilot, energy, and collaborative detection. In: Military Communications Conference, Washington, DC, USA, october 2006.
  • 9TANDRA R. Fundamental limits on detection in Low SNR [D]. Berkeley: University of California, 2005.
  • 10DANIJELA C, ROBERT W. Physical layer design issues unique to cognitive radio systems[C]. Berlin, Germany[S]. 2005:759-763.

引证文献10

二级引证文献27

吉林大学学报（信息科学版）
2008年 第2期

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