Abstract
Priority Based Routing and Link Scheduling for Cognitive Radio Networks
Highlights
The fast growth of wireless devices and services in past decades is exhausting the valuable spectrum resource
We propose a Priority Based Routing and link Scheduling (PBRS) scheme to reduce delay of high priority secondary users (SU) traffic, through reducing the number of channel switchings
The network resource consumption of PBRS and Disruption Aware Routing and link Scheduling (DARS) is slightly higher than Independent Routing and Link Scheduling (IRLS); but both algorithms can reduce the number of channel switching to be discussed
Summary
The fast growth of wireless devices and services in past decades is exhausting the valuable spectrum resource. We study the impact of the priority of the traffic class on the routing and link scheduling problems Some services such as voice, live conference or gaming are sensitive to the delay. PBRS includes an optimization model and an efficient algorithm to solve the routing and link scheduling problem, to reduce delay to high priority traffic classes. The contributions of this paper can be summarized as follows: 1) develop an optimization model for routing and link scheduling to avoid disruptions to higher priority communication sessions while reducing the network resource consumption, and 2) develop an efficient algorithm to solve the routing and link scheduling problem.
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