Spektrum paylaşım modelinde ikincil kullanıcıların Nakagami-m ve Log-normal sönümlemeli kanallar üzerindeki kapasite analizi

Yıl 2023, , 2205 - 2212, 12.04.2023

Arif Başgümüş , Maide Sultan Ardıç , Mustafa Namdar

https://doi.org/10.17341/gazimmfd.1111493

Cited By: 1

Öz

Bu çalışmada, bilişsel radyo ağı için spektrum paylaşım modelinde birincil kullanıcıdan gelen girişimin etkisi dikkate alınarak, ortalama alınan güç kısıtlaması altında ikincil kullanıcı için ergodik kapasite performansı analiz edilmektedir. Kapasiteyi maksimuma çıkaran su doldurma çözümü ve güç tahsisi yaklaşımı ile Nakagami-m ve log-normal dağılımlı sönümlemeli kanallar üzerinde ergodik kapasiteye ilişkin teorik çıkarımlar türetilmektedir. Nümerik sonuçlar, birincil ağ kaynaklı girişim kanallarının, ikincil kullanıcının kapasitesi üzerinde önemli ölçüde etki oluşturduğunu göstermektedir. İkincil kullanıcı için ergodik kapasite performansı; Nakagami dağılımın sönümleme parametresi, log-normal dağılımın standart sapması ve ikincil kullanıcın optimum gücünü belirleyen Lagrange çarpanı parametreleri dikkate alınarak, Monte Carlo benzetimleriyle doğrulanmaktadır.

Anahtar Kelimeler

Bilişsel radyo, Ergodik kapasite, Nakagami-m ve log-normal sönümleme kanalları, Spektrum paylaşımı

Kaynakça

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