QoS-aware cross-layer scheduling for cognitive radio networks with heterogeneous data traffic

Yin Hui Chye, Eryk Dutkiewicz, Rein Vesilo, Ren Ping Liu

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

2 Citations (Scopus)

Abstract

Cognitive radio (CR) has been an enabling technology for secondary users (SUs) to efficiently exploit radio spectrum underutilized by primary users (PUs). To avoid downgrading PUs' performance, dynamic spectrum access (DSA) plays an important role in CR networks (CRNs) for adaptively assigning spectrum to SUs. During spectrum handover to PUs, quality of service (QoS) of SUs may not be satisfied due to high competition among SUs with different traffic types. However, in most existing DSA schemes, traffic types handled by SUs are treated equally. To achieve QoS satisfaction for SUs with heterogeneous traffic, this paper proposes a new cross-layer scheduling that jointly considers DSA, packet scheduling and a channel sharing policy. QoS performance of the cross-layer scheduling is measured in terms of average throughput, average packet delay and dropping probability for SUs with different traffic types. QoS support for SUs provided by the proposed scheduling scheme incorporating the channel sharing policy is shown to be more efficient and balanced compared to existing scheduling schemes.

Original languageEnglish
Title of host publication2013 Australasian Telecommunication Networks and Applications Conference, ATNAC 2013
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages213-218
Number of pages6
ISBN (Print)9781479910816
DOIs
Publication statusPublished - 2013
Event2013 Australasian Telecommunication Networks and Applications Conference, ATNAC 2013 - Christchurch, New Zealand
Duration: 20 Nov 201322 Nov 2013

Other

Other2013 Australasian Telecommunication Networks and Applications Conference, ATNAC 2013
CountryNew Zealand
CityChristchurch
Period20/11/1322/11/13

Keywords

  • cognitive radio network
  • quality of service
  • cross- layer design
  • packet scheduling
  • dynamic spectrum access
  • channel sharing
  • heterogeneous traffic

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