21 May 2013 QoS-aware dynamic spectrum access for cognitive radio networks
Author Affiliations +
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.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xin Tian, Xin Tian, Zhi Tian, Zhi Tian, Khanh Pham, Khanh Pham, Erik Blasch, Erik Blasch, Genshe Chen, Genshe Chen, "QoS-aware dynamic spectrum access for cognitive radio networks", Proc. SPIE 8739, Sensors and Systems for Space Applications VI, 87390P (21 May 2013); doi: 10.1117/12.2015205; https://doi.org/10.1117/12.2015205


Genetic algorithm and its application in lens design
Proceedings of SPIE (October 31 1996)
Information hiding technique
Proceedings of SPIE (August 05 2002)
Cooperative data dissemination to mission sites
Proceedings of SPIE (April 28 2010)
Structural health monitoring using FFT
Proceedings of SPIE (May 16 2005)

Back to Top