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A Framework for Packet Delay Analysis of Point-to-Multipoint Underlay Cognitive Radio Networks
Blekinge Institute of Technology, Sweden.
Blekinge Institute of Technology, Sweden.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
University of Rwanda, Rwanda.
(English)In: IEEE Transactions on Mobile Computing, ISSN 1536-1233, E-ISSN 1558-0660Article in journal (Refereed) Epub ahead of print
Abstract [en]

This paper presents a queueing analytical framework for the performance evaluation of the secondary user (SU) packet transmission with service differentiation in a point-to- multipoint underlay cognitive radio network. The transmit power of the SU transmitter is subject to the joint outage constraint imposed by the primary user receivers (PU-Rxs) and the SU maximum transmit power limit. The analysis considers a queueing model for secondary traffic with multiple classes, and different types of arrival and service processes under a non-preemptive priority service discipline. The SU quality of service (QoS) is characterized by a packet timeout threshold and target bit error rate. Given these settings, analytical expressions of the packet timeout probability and average transmission time are derived for opportunistic and multicast scheduling. Moreover, expressions of the average packet waiting time in the queue and the total time in the system for each class of traffic are obtained. Numerical examples are provided to illustrate the secondary network performance with respect to various parameters such as number of PU-Rxs and SU receivers, SU packet arrival process, QoS requirements, and the impact of interference from the primary network to the secondary network.

National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-34077DOI: 10.1109/TMC.2016.2621760OAI: oai:DiVA.org:mdh-34077DiVA: diva2:1056886
Projects
SafeCOP - Safe Cooperating Cyber-Physical Systems using Wireless Communication
Available from: 2016-12-15 Created: 2016-12-13 Last updated: 2016-12-15Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • Other locale
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Output format
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  • asciidoc
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