Abstract
In this paper, a two-stage precoding algorithm, termed as subspace-projection prioritized signal-to-leakage-and-noise ratio (SP-PSLNR) algorithm, is proposed for dynamic spectrum access systems with different priorities of spectrum utilization. In the first stage precoding, the interference from the secondary users (SUs) to the primary users (PUs) is canceled; while in the second stage precoding, we differentiate the interference protection and quality of service (QoS) among SUs with different priorities of spectrum access. For this purpose, we newly introduce a parameter called as “interference leakage weight (ILW)” to be used in the optimization of signal to leakage and noise ratio (SLNR). The simulation results show that the proposed method can increase SUs’ maximum allowed transmit power while maintaining protection to the PUs. Moreover, this method can jointly optimize the transmit power of SUs and minimize the interference among SUs. Furthermore, the QoS of SUs can be differentiated by adjusting the ILWs.
This work is supported in part by Sony China Research Laboratory.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Hossain, E., Rasti, M., Tabassum, H., Abdelnasser, A.: Evolution toward 5G multi-tier cellular wireless networks: an interference management perspective. IEEE Wirel. Commun. 21(3), 118–127 (2014)
ElSawy, H., Hossain, E., Haenggi, M.: Stochastic geometry for modeling, analysis, and design of multi-tier and cognitive cellular wireless networks: a survey. IEEE Commun. Surv. Tutorials Third Q. 15(3), 996–1019 (2013)
Lee, K.-J., Lee, I.: MMSE based block diagonalization for cognitive radio MIMO broadcast channels. IEEE Trans. Wireless Commun. 10(10), 3139–3144 (2011)
Yiftach, R., Bergel, I.: MMSE-SLNR Precoding for Multi-Antenna Cognitive Radio. IEEE Trans. Signal Process. 62(10), 2719–2729 (2014)
Xu, Y., Mao, S.: Distributed interference alignment in cognitive radio networks. In: 2013 IEEE 22nd International Conference on Computer Communications and Networks (ICCCN), Nassau, Bahamas, pp. 1–7 (2013)
Li, S., Zhao, Y., Sun, C., Guo, X.: Development of an advanced geolocation engine-based cognitive radio testbed. In: 2014 IEEE/CIC International Conference on Communications in China (ICCC), Shanghai, China, pp. 528–533 (2014)
Executive Office of the President and President’s Council of Advisors on Science and Technology, Report to the President - Realizing the Full Potential of Government-Held Spectrum to Spur Economic Growth, July 2012. www.whitehouse.gov/ostp/pcast
Acknowledgments
Special thanks to Jinxing Li, Qixin Tai, Songpeng Li, Wei Ding and Zhichao Hou for their great help in debugging the simulation code for this work.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
About this paper
Cite this paper
Wang, Y., Zhao, Y., Guo, X., Sun, C. (2016). A Two-Stage Precoding Algorithm for Spectrum Access Systems with Different Priorities of Spectrum Utilization. In: Noguet, D., Moessner, K., Palicot, J. (eds) Cognitive Radio Oriented Wireless Networks. CrownCom 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 172. Springer, Cham. https://doi.org/10.1007/978-3-319-40352-6_2
Download citation
DOI: https://doi.org/10.1007/978-3-319-40352-6_2
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-40351-9
Online ISBN: 978-3-319-40352-6
eBook Packages: Computer ScienceComputer Science (R0)