• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Robust Power Control for Cognitive Radio in Spectrum Underlay Networks

Vol. 5, No. 7, July 27, 2011
10.3837/tiis.2011.07.001, Download Paper (Free):

Abstract

Power control is a key technique in spectrum underlay cognitive network to guarantee the interference temperature limit of the primary users (PUs) and the quality of service of the secondary users (SUs). In this paper, a robust power control scheme via link gain pricing with H∞ estimator is proposed. The scheme guarantees the interference temperature of the PUs through operating in the network-centric manner, and keeps the fairness between the SUs through link gain pricing. Furthermore, the H∞ filter is also used in the proposed scheme to estimate the channel variation, and thus the power control scheme is robust to the severe channel fading. Plenty of simulations are taken, and prove its superior robust performance against the channel fading, and its effectiveness in guaranteeing the interference temperature limit of the PUs.


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Cite this article

[IEEE Style]
N. Zhao and H. Sun, "Robust Power Control for Cognitive Radio in Spectrum Underlay Networks," KSII Transactions on Internet and Information Systems, vol. 5, no. 7, pp. 1214-1229, 2011. DOI: 10.3837/tiis.2011.07.001.

[ACM Style]
Nan Zhao and Hongjian Sun. 2011. Robust Power Control for Cognitive Radio in Spectrum Underlay Networks. KSII Transactions on Internet and Information Systems, 5, 7, (2011), 1214-1229. DOI: 10.3837/tiis.2011.07.001.