Bilişsel Radyolar için Fuzzy Hipotez Test

Öz

Bu makale Bilişsel Radyo sistemleri de hipotez testi için istatistiksel bir yaklaşım sunmaktadır. Hipotez testleri, algılama teorisinden radar sistemlerine kadar çok çeşitli uygulamalara sahiptir. Günümüzde spektrum kıtlığı sorununun çözümü olan Bilişsel Radyo sistemlerinde hipotez testleri sıklıkla kullanılmaktadır. Bilişsel radyo sistemlerinde hipotez testleri spektrum algılamanın temelini oluşturmaktadır. Hipotez testi ile, spektrum boşluklarının farklı kullanıcıların erişimine açılması için spektrum boşlukları belirlenir. Bu çalışmada, Bilişsel Radyo kullanıcıları tarafından tespit edilen işaret ile bulanık hipotez testine dayalı spektrum algılama yöntemi önerilmiştir. Önerilen spektrum algılama modelinin teorik temelleri ve benzetim sonuçları da verilmiştir. Benzetim çalışmaları önerilen algılama yönteminin hesaplama maliyeti avantajını ve algılama performansındaki başarısını kanıtlamaktadır.

Anahtar Kelimeler

• Bilişsel Radyo
• Fuzzy Hipotez Test
• Hipotez Testi
• Spektrum Algılama

Fuzzy Hypothesis Test for Cognitive Radios

Öz

This article presents a statistical approach called hypothesis testing for Cognitive Radio systems. Hyposthesis tests have a wide range of applications from detection theory to radar systems. Hypothesis testing is frequently used in Cognitive Radio systems, which are the solution to the spectrum shortage problem today. Hypothesis testing in Cognitive Radio systems is the basis of spectrum detection. By means of hypothesis testing, spectrum gaps are determined so that spectrum gaps are opened to different users' access. In this study, a fuzzy hypothesis test based spectrum detection method is proposed with the signal detected by Cognitive Radio users. Theoretical bases and simulation results of the proposed spectrum detection model are also given. Simulation studies prove the computational cost advantage and detection performance success of the proposed detection method.

Anahtar Kelimeler

• Cognitive Radio
• Fuzzy Hypothesis Test
• Hypothesis Test
• Spectrum Sensing

Kaynakça

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