J4 ›› 2011, Vol. 38 ›› Issue (4): 20-25+37.doi: 10.3969/j.issn.1001-2400.2011.04.004

• 研究论文 • 上一篇    下一篇

多天线认知无线电网络联合资源管理方法

李钊;赵林靖;刘勤   

  1. (西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071)
  • 收稿日期:2010-06-15 出版日期:2011-08-20 发布日期:2011-09-28
  • 通讯作者: 李钊
  • 作者简介:李钊(1981-),男,副教授,博士,E-mail: zli_19912@126.com.
  • 基金资助:

    国家杰出青年科学基金资助项目(60725105);国家重点基础研究发展计划(973计划)资助项目(2009CB320404);长江学者和创新团队发展计划资助项目(IRT0852);国家自然科学基金资助项目(60902032);高等学校引智计划资助项目(B08038);教育部科学技术研究重点资助项目(107103);重大专项资助项目(2009ZX03007-004);中央高校基本科研业务费专项资金资助项目(K50510010022);综合业务网理论及关键技术国家重点实验室自主课题资助项目(ISN1103005)

Joint resource management in multi-antenna cognitive radio networks

LI Zhao;ZHAO Linjing;LIU Qin   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2010-06-15 Online:2011-08-20 Published:2011-09-28
  • Contact: LI Zhao

摘要:

在多天线认知无线电网络中设计发射端与接收端的联合信号处理算法,实现认知系统对授权系统在同一授权频道的无干扰共存.在此基础上,完成空频资源联合建模以及管理方法设计.仿真结果表明,与非共存方法相比,该方法能够在不影响授权系统性能的前提下,有效改善认知系统的通信性能.

关键词: 认知无线电, 多天线, 预编码, 阻塞概率

Abstract:

This paper designs signal processing algorithms at transmitter and receiver ends jointly in multi-antenna cognitive radio networks. Accordingly the cognitive system could coexist with the primary in one occupied authorized frequency channel without interfering with the primary. Based on the algorithms we devise a spatio-temporal resource model, and then propose a joint resource management method. Simulation results show that compared with non-coexistent method, the proposed scheme could effectively improve the performance of the cognitive system on the premise that cognitive transmission imposes no interference on the primary.

Key words: cognitive radio, multiple antennas, precoding, blocking probability

中图分类号: 

  • TN929.5