Non-preemptive Queueing Model of Spectrum Handoff Scheme Based on Prioritized Data Traffic in Cognitive Wireless Networks
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Dosyalar
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Electronics Telecommunications Research Inst
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a non-preemptive M/G/1 queueing model of a spectrum handoff scheme for cognitive wireless networks is proposed. Because spectrum handoff gives secondary users an opportunity to carry on their transmissions, it is crucially important to determine the actions of primary users. In our queueing model, prioritized data traffic is utilized to meet the requirements of the secondary users. These users' packets are categorized into three different priority classes: urgent, real-time, and non-real time. Urgent data packets have the highest priority, while non-real time data packets have the lowest priority. Riverbed (OPNET) Modeler simulation software was used to simulate both reactive and proactive decision spectrum handoff schemes. The simulation results were consistent with the analytical results obtained under different load and traffic conditions. This study also revealed that the cumulative number of handoffs can be drastically decreased by exploiting priority classes and utilizing a decent spectrum handoff strategy, such as a reactive or proactive decision-based strategy.
Açıklama
Bayrakdar, M. Enes/0000-0001-9446-0988
WOS: 000417369900011
WOS: 000417369900011
Anahtar Kelimeler
Cognitive radio networks, Priority, Queueing model, Spectrum handoff
Kaynak
Etri Journal
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
39
Sayı
4
