认知无线电中的一种频谱盲感知算法

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (6): 1311-1313.

认知无线电中的一种频谱盲感知算法

陈昊^1,2, 杨俊安^1,2, 吴彦华^1,2

1. 解放军电子工程学院, 安徽, 合肥, 230037;
2. 安徽省电子制约技术重点实验室, 安徽, 合肥, 230037

收稿日期:2008-03-24 修回日期:2008-10-20 出版日期:2009-06-20 发布日期:2010-01-03
作者简介:陈昊(1982- ),男,博士研究生,主要研究方向为认知无线电,智能计算等技术.E-mail:ritian99@21cn.com
基金资助:
国家自然科学基金项目(60175018);安徽省自然科学基金项目(050420101)资助课题

One method of blinding sensing for cognitive radio

CHEN Hao^1,2, YANG Jun-an^1,2, WU Yan-hua^1,2

1. Coll. of Electronic Engineering of the PLA, Hefei 230037, China;
2. Key Lab. of Electronic Restriction Technology, Hefei 230037, China

Received:2008-03-24 Revised:2008-10-20 Online:2009-06-20 Published:2010-01-03

摘要/Abstract

摘要： 认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术,它能够通过与其运行环境交互而改变其发射机参数,特别是可让未授权用户使用授权用户的频谱,此外,它还为网络及终端提供更高的灵活性。高可靠性的频谱感知是实现频谱共享的关键。在分析了Parthapratim De提出的认知无线电中频谱Blinding Sensing算法的基础上提出了利用数据前、后向线性预测与矩阵QR分解结合的新算法。仿真实验表明,在同样的无线传输环境下,新算法比原算法能更可靠地感知频谱空穴。

Abstract: Cognitive radio is an intelligent technology of increasing spectrum utilization,which can change its transmitter parameters based on interaction with the environment where it operates.It can be used to improve the spectrum access and efficiency of the spectrum use;especially it enables an unlicensed user to use the licensed spectrum.It also makes network terminals more flexible.The key to share the spectrum is sensing spectrum reliably.A novel method of integrating forward is proposed and backward linear prediction with matrix QR decomposition based on the blinding sensing algorithm proposed by Parthapratim De.Simulation results demonstrate the new method can sense the spectrum void more reliably under the same wireless transmitting environment compared with the original blinding sensing algorithm.

中图分类号:

TN929.52

陈昊, 杨俊安, 吴彦华. 认知无线电中的一种频谱盲感知算法[J]. Journal of Systems Engineering and Electronics, 2009, 31(6): 1311-1313.

CHEN Hao, YANG Jun-an, WU Yan-hua. One method of blinding sensing for cognitive radio[J]. Journal of Systems Engineering and Electronics, 2009, 31(6): 1311-1313.