北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2011, Vol. 34 ›› Issue (6): 28-32.doi: 10.13190/jbupt.201106.28.lizh

• 论文 • 上一篇    下一篇

认知无线电网络基于空分复用的收发联合频谱共享

李钊1,杨家玮2   

  1. 1. 西安电子科技大学通信工程学院信息科学研究所
    2. 西安电子科技大学信科所
  • 收稿日期:2011-01-04 修回日期:2011-02-23 出版日期:2011-12-28 发布日期:2011-10-18
  • 通讯作者: 李钊 E-mail:zli@xidian.edu.cn
  • 作者简介:李钊(1981-),男,副教授,E-mail:zli_19912@126.com
  • 基金资助:

    国家杰出青年科学基金项目;国家重点基础研究发展计划项目;长江学者和创新团队发展计划项目;国家自然科学基金项目;高等学校引智计划项目;中央高校基本科研业务费专项资金项目

Space Division Multiplexing Aided Joint Transmit-Receive Spectrum Sharing in Cognitive Radio Networks

  • Received:2011-01-04 Revised:2011-02-23 Online:2011-12-28 Published:2011-10-18
  • Contact: Zhao LI E-mail:zli@xidian.edu.cn

摘要:

针对多天线认知无线电网络提出一种基于空分复用的收发联合频谱共享方法,该方法综合利用认知通信与系统间干扰的空间相关特性,在无空闲频谱资源可用时合理选择授权系统及其频道,并以空分复用的方式实现频谱共享。理论分析与仿真结果表明,相比于仅在认知基站端进行选择以及穷举搜索,所提方法能够获得接近最佳的系统吞吐率特性,并且具有低的复杂度。

Abstract:

This paper proposes a space division multiplexing based joint transmit-receive spectrum sharing method in cognitive radio networks (CRN). By exploiting spatial correlation features between cognitive transmission and interference among different systems, appropriate primary system and its channel could be selected under the condition that no idle spectrum resource is available. Consequently, spectrum sharing is carried out using space division multiplexing. Analysis and simulation results show that compared with the method implemented only at cognitive base station (CBS) and exhaustive searching, the proposed scheme could achieve near-optimal system throughput performance with reduced complexity.

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