Markov Model for HF Spectrum Occupancy
Markov Model for HF Spectrum Occupancy
复制标题
高频频谱占用的马尔可夫模型
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
A. De Sabata
中科院分区：
文献类型：
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作者：
Cornel Balint;A. De Sabata
在整个无线电频谱变得越来越繁忙的情况下，不同频段的频谱占用测量和频谱占用数据建模越来越受到关注。本文提出了一种时间域频谱占用的马尔可夫链模型。用罗马尼亚西部一些高频波段的光谱占有率的实际数据测量对模型进行了验证。使用通用软件无线电外围设备(USRP)和宽带天线采集了信号，并离线计算了一组频段的频谱占有率，这些频段对建立高频频段的紧急通信系统感兴趣。证明了马尔可夫模型的存在性，并给出了模型的精度。结果表明，马尔可夫链能够准确地模拟短波频域频谱占用的统计特性。
Measurement of spectrum occupancy in different frequency bands and spectrum occupancy data modeling are subject of increased attention given that the whole radio spectrum becomes more and more busy. In this paper a Markov chain model for time domain spectrum occupancy is presented. The model is validated using real data measurements of the spectral occupancy in the Western part of Romania in some high frequency (HF) bands. Signals have been acquired using Universal Software Radio Peripheral (USRP) equipment and a broadband antenna and spectrum occupancy values have been calculated off-line for a set of frequency bands that present interest for establishing of a system for emergency communications in HF band. The existence of the Markov model is proved, and the accuracy of the model is presented. The results show that Markov chains can accurate model the statistical properties of spectrum occupancy in HF domain.