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

Content Provider	IEEE Xplore Digital Library
Author	Yin Hui Chye Dutkiewicz, E. Vesilo, R. Ren Ping Liu
Copyright Year	2013
Description	Author affiliation: Commonwealth Sci. & Ind. Res. Organ. (CSIRO), Sydney, NSW, Australia (Ren Ping Liu) \|\| Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia (Yin Hui Chye; Dutkiewicz, E.; Vesilo, R.)
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.
Starting Page	213
Ending Page	218
File Size	475624
Page Count	6
File Format	PDF
ISBN	9781479910816
DOI	10.1109/ATNAC.2013.6705383
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-20
Publisher Place	New Zealand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Job shop scheduling heterogeneous traffic cross-layer design dynamic spectrum access Quality of service Cognitive radio network Throughput packet scheduling Delays quality of service channel sharing
Content Type	Text
Resource Type	Article

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