Abstract
We consider a slow fading multiuser environment with primary and secondary users. The secondary users have only partial knowledge of the channel and are subjected to transmitted power constraints by the primary users. Their communications are intrinsically affected by outage events. We propose and analyze two algorithms for joint rate and power allocation. In one algorithm, the secondary transmitters cooperate to maximizing a common utility function accounting for the total throughput of the network. In a second approach based on a game framework, the secondary users aim at maximizing selfishly their own utilities. The latter approach shows better fairness properties at the expenses of some global performance loss compared to the optimum cooperative approach.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Mitola, J.: Cognitive radio for flexible mobile multimedia communication. In: Proc. IEEE Int. Workshop Mobile Multimedia Communcations (MoMuC), San Diego, CA, November 15-17, pp. 3–10 (1999)
Etkin, R., Parekh, A., Tse, D.: Spectrum sharing for unlicenced bands. IEEE J. Select. Areas Commun. 25(3), 517–528 (2007)
Scutari, G., Palomar, D.P.: MIMO cognitive radio: A game theretical approach. IEEE Trans. on Signal Processing 58(2), 761–780 (2010)
Boyd, S., Vandenberghe, L.: Convex optimization. Cambridge University Press, New York (2007)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Lei, X., Avrachenkov, K., Cottatellucci, L., Garnaev, A. (2010). Competitive Unlicensed Spectrum Sharing with Partial Information on Slow Fading Channels. In: Osipov, E., Kassler, A., Bohnert, T.M., Masip-Bruin, X. (eds) Wired/Wireless Internet Communications. WWIC 2010. Lecture Notes in Computer Science, vol 6074. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13315-2_13
Download citation
DOI: https://doi.org/10.1007/978-3-642-13315-2_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-13314-5
Online ISBN: 978-3-642-13315-2
eBook Packages: Computer ScienceComputer Science (R0)