QoS-driven channel allocation schemes based on secondary users' priority in cognitive radio networks Online publication date: Sun, 06-Nov-2016
by Ahmed T. El-Toukhey; Mohsen M. Tantawy; Ibrahim F. Tarrad
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 11, No. 2, 2016
Abstract: Cognitive radio networks have gained popularity as they can support quality-driven wireless services. The Quality of Service (QoS) that directly measures the satisfaction of the end users cannot be realised owing to limited spectrum resources. This paper proposes a channel allocation model to improve the QoS of the priority-based Secondary Users' (SUs) performance in terms of throughput, blocking and dropping probability. The results show that, for increasing primary users' arrival rate, throughput and the dropping probability for the highest priority SUs increase by 23.3-46.1% and 30.16-35.67%, respectively, while the blocking probability decreases 55-82.5%. For increasing the system-accepted SUs arrival rate, throughput and the dropping probability for the highest priority SUs increase by 9.1-50.6% and 27.3-61.7%, respectively, and the blocking probability decreases by 42.7-43.6%.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Wireless and Mobile Computing (IJWMC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook