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Proceedings Paper

QoS-aware dynamic spectrum access for cognitive radio networks
Author(s): Xin Tian; Zhi Tian; Khanh Pham; Erik Blasch; Genshe Chen
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Paper Abstract

Ubiquitous wireless networking requires efficient dynamic spectrum access (DSA) among heterogeneous users with diverse transmission types and bandwidth demands. To meet user-specific quality-of-service (QoS) requirements, the power and spectrum allocated to each user should lie inside a power/spectral-shape bounded region in order to be meaningful for the intended application. Most existing DSA methods aim at enhancing the total system utility. As such, spectrum wastage may arise when the system-wide optimal allocation falls outside individual users’ desired regions for QoS provisioning. In this work, novel QoS-aware DSA algorithms are developed for both non-cooperative power allocation (QoSNCPA) and cooperative (QoSCPA) users in cognitive radio (CR) networks. The algorithms maximize the “useful utilities” to the users, and minimize the power consumption and mutual interference within the CR network. Simulations results of the QoSNCPA and QoSCPA for single and multiple channel cases demonstrate the effectiveness of the algorithms for DSA.

Paper Details

Date Published: 21 May 2013
PDF: 12 pages
Proc. SPIE 8739, Sensors and Systems for Space Applications VI, 87390P (21 May 2013); doi: 10.1117/12.2015205
Show Author Affiliations
Xin Tian, Intelligent Fusion Technology, Inc. (United States)
Zhi Tian, Michigan Tech Univ. (United States)
Khanh Pham, Air Force Research Lab. (United States)
Erik Blasch, Air Force Research Lab. (United States)
Genshe Chen, Intelligent Fusion Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 8739:
Sensors and Systems for Space Applications VI
Khanh D. Pham; Joseph L. Cox; Richard T. Howard; Genshe Chen, Editor(s)

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