Vol. 10, No. 10, October 30, 2016
10.3837/tiis.2016.10.007,
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Abstract
We consider a virtualized cognitive radio (CR) network, where multiple virtual network
operators (VNOs) who own different virtual cognitive base stations (VCBSs) share the same
physical CBS (PCBS) which is owned by an infrastructure provider (InP), sharing the
spectrum with the primary user (PU). The uplink scenario is considered where the secondary
users (SUs) transmit to the VCBSs. The PU is protected by constraining the interference
power from the SUs. Such constraint is applied by the InP through pricing the interference. A
Stackelberg game is formulated to jointly maximize the revenue of the InP and the individual
utilities of the VNOs, and then the Stackelberg equilibrium is investigated. Specifically, the
optimal interference price and channel allocation for the VNOs to maximize the revenue of the
InP and the optimal power allocation for the SUs to maximize the individual utilities of the
VNOs are derived. In addition, a low‐complexity ±‐optimal solution is also proposed for
obtaining the interference price and channel allocation for the VNOs. Simulations are
provided to verify the proposed strategies. It is shown that the proposed strategies are effective
in resource allocation and the ±‐optimal strategy achieves practically the same performance as
the optimal strategy can achieve. It is also shown that the InP will not benefit from a large
interference power limit, and selecting VNOs with higher unit rate utility gain to share the
resources of the InP is beneficial to both the InP and the VNOs.
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Cite this article
[IEEE Style]
Q. Li and D. Xu, "Price-based Resource Allocation for Virtualized Cognitive Radio Networks," KSII Transactions on Internet and Information Systems, vol. 10, no. 10, pp. 4748-4765, 2016. DOI: 10.3837/tiis.2016.10.007.
[ACM Style]
Qun Li and Ding Xu. 2016. Price-based Resource Allocation for Virtualized Cognitive Radio Networks. KSII Transactions on Internet and Information Systems, 10, 10, (2016), 4748-4765. DOI: 10.3837/tiis.2016.10.007.
[BibTeX Style]
@article{tiis:21241, title="Price-based Resource Allocation for Virtualized Cognitive Radio Networks", author="Qun Li and Ding Xu and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2016.10.007}, volume={10}, number={10}, year="2016", month={October}, pages={4748-4765}}