一种基于协方差的低复杂度盲多频带频谱感知方法

Q3 Engineering

International Journal of Electronics Letters Pub Date : 2023-06-15 DOI:10.1080/21681724.2023.2224066

Gemi Rachel George, Abdul Rahim V C, Chris Prema S

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引用次数: 0

摘要

摘要提出了一种宽带场景下的盲多频带频谱感知方法，该方法使用由少量样本形成的缩减样本协方差矩阵的特征值。在这种方法中，宽带被分割成不重叠的多个子带，以确定空闲子带。所提出的检测方案不需要关于主要用户或噪声信号的先验知识，并且具有较小的计算复杂度。仿真结果表明，与现有方法相比，该方法具有更好的检测概率。

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A low complexity blind multiband spectrum sensing using covariance based approach

ABSTRACT A blind multiband spectrum sensing approach in a wideband scenario is presented using eigenvalues of a reduced sample covariance matrix formed from a small number of samples. In this approach, the wideband is split into non-overlapping multiple subbands to determine the vacant subbands. The proposed detection scheme does not require apriori knowledge about the primary users or the noise signals and has lesser computational complexity. Simulation results show better probability of detection for the proposed method in comparison with the existing methods.

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来源期刊

International Journal of Electronics Letters Engineering-Electrical and Electronic Engineering

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： International Journal of Electronics Letters (IJEL) is a world-leading journal dedicated to the rapid dissemination of new concepts and developments across the broad and interdisciplinary field of electronics. The Journal welcomes submissions on all topics in electronics, with specific emphasis on the following areas: • power electronics • embedded systems • semiconductor devices • analogue circuits • digital electronics • microwave and millimetre-wave techniques • wireless and optical communications • sensors • instrumentation • medical electronics Papers should focus on technical applications and developing research at the cutting edge of the discipline. Proposals for special issues are encouraged, and should be discussed with the Editor-in-Chief.