计算机工程与应用2011，Vol.47Issue(9)：121-123,3.DOI:10.3778/j.issn.1002-8331.2011.09.036
基于噪声估计的加权协同频谱感知技术
Weighted cooperative spectrum sensing based on noise estimation.
冯文江 1宋麟 1蒋卫恒1
作者信息
- 1. 重庆大学,通信工程学院,重庆,400044
- 折叠
摘要
Abstract
Spectrum sensing is one of the key technologies in cognitive radio and energy detection is a typical method of it.According to the limitation of the conventional energy detection and cooperative detection, a kind of weighted cooperative spectrum detection method which is based on estimated noise is proposed. The primary user's band noise characters which are as a credit quotiety used to data fusion are obtained approximately throughout estimating the noise of adjacent safeguard (transition) spectrum band detected by different secondary users. The analysis of the simulation results proves that the proposed scheme improves sensing performance obviously.关键词
认知无线电/能量检测/噪声估计/加权协同频谱感知Key words
cognitive radio/energy detection/noise estimation/weighted cooperative spectrum sensing分类
信息技术与安全科学引用本文复制引用
冯文江,宋麟,蒋卫恒..基于噪声估计的加权协同频谱感知技术[J].计算机工程与应用,2011,47(9):121-123,3.
