Yazar
Ercan, Ali Özer
Basım Tarihi
2016-03
Basım Yeri
-
Springer Science+Business Media
Konu
Cognitive radio, Asynchronous opportunistic spectrum access, Channel utilization
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
1863-1711
Kayıt Numarası
87cc5d58-d205-4c92-b020-3606bd14ee93
Lokasyon
Electrical & Electronics Engineering
Tarih
2016-03
Notlar
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin
This paper presents a theoretical analysis of the spectrum utilization levels in a cognitive radio system. We assume that the traffic of the primary network is bursty and asynchronous with the secondary network, which performs imperfect spectrum sensing. Collisions of the primary and the secondary packets are assumed to result in increased packet error probabilities. We present primary and secondary utilization levels under optimized secondary transmission periods for varying primary traffic characteristics and secondary sensing performance levels. The results are also validated by extensive Monte Carlo simulations. We find that an asynchronous cognitive radio network with imperfect spectrum sensing is feasible when optimized transmission periods are used. The effects of primary traffic’s burst pattern and secondary sensing performance are discussed.
DOI
10.1007/s11760-015-0782-4
Cilt
10
