Impartial spectrum decision under interference temperature model in cognitive wireless mesh networks Online publication date: Wed, 09-Oct-2013
by Yun Yang; Guo-an Zhang; Yan-cheng Ji
International Journal of Embedded Systems (IJES), Vol. 5, No. 3, 2013
Abstract: Interference temperature model was proposed to relieve the problem of spectrum scarcity and spectrum underutilisation in the licensed bands by allowing simultaneous communication between licensees and cognitive unlicensed users in underlay spectrum sharing mode. Under interference temperature limits, a new metric called outage probability was proposed for the spectrum handoff decision in cognitive wireless mesh networks, to increase the spectrum efficiency and decrease the handoff latency. Furthermore, according to the pre-emptive resume priority (PRP) M/G/1 queuing theory, the handoff decision policy was applied to the probability-based spectrum decision strategy. Simulation results show that the proposed decision scheme reduces the outage probability and overall transmission time of secondary users, simultaneously guarantees the fairness in the channel utilisation, and further improves the network performance.
Online publication date: Wed, 09-Oct-2013
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 Embedded Systems (IJES):
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 email@example.com